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On Aug. 13, 2014, a company called DigitalGlobe launched what was then the sharpest-eyed satellite of all time. WorldView-3 is a high-resolution imaging satellite that can resolve features as small as 1 foot (31 centimeters) across.

Its instruments allow it to peer through fog and smoke to see Earth's surface at a level of detail that was unprecedented for a non-governmental spacecraft. WorldView-3 lifted off on a United Launch Alliance Atlas V rocket from Vandenberg Air Force Base in California and has been orbiting Earth ever since.

The WorldView-3 Earth-observing satellite. (Image credit: Maxar Technologies)Why it mattered

WorldView-3 pushed forward the technology of Earth-observing satellites. With its high resolution and ability to create mosaic images and deliver data in record time, the spacecraft changed the game in terms of studying Earth from space. While technology continued to advance beyond WorldView-3, it was a critical step in the process. For example, its data has helped researchers better track methane emissions coming from offshore oil and gas rigs, which is important as methane is a powerful greenhouse gas which contributes substantially to climate change.

WorldView-3's data is sorted by an algorithm that helps filter, process and color-correct images that might have been affected by atmospheric effects. With all of the imagery and data from satellites like WorldView-3, researchers can better track and understand contributors to climate change like methane plumes, as well as monitor deforestation and agriculture and study the spread and effects of natural disasters like wildfire.

Lastly, in an unexpected but amazing find, in 2015, archaeologists used data from WorldView-3 to discover what is thought to be a lost Viking village in Newfoundland. The near-infrared imagery captured by the satellite helped an international team to spot this village, which was only the second Viking settlement found in North America.

The moment just before totality during the Aug. 12, 2026 total solar eclipse, captured from the deck of the MS Spitsbergen on the HX Expeditions eclipse voyage. (Image credit: Daisy Dobrijevic/Future)

The total solar eclipse of Aug. 12, 2026 was one for the books. And this photo, snapped just as the eclipse was about to enter totality, really captures the drama of the moment.

What is it?

On Aug. 12, 2026, millions of people around the world witnessed a total solar eclipse. This happens when the moon passes in front of the sun, completely blocking it from our perspective here on Earth. (During a partial solar eclipse, only part of the sun's face is blocked by the moon.)

Observers lucky enough to be in the narrow "path of totality" that day got an experience they'll never forget.

Why is it incredible?

The chance to observe a total solar eclipse doesn't come along very often and is truly surreal and magical. While you might logically know that it's a predictable result of orbital dynamics, it's still incredibly strange in the moment to watch the sun disappear behind a black disk.

During totality, you experience a sort of false nighttime in the middle of the day. This can trigger strange responses from wildlife, with animals that are typically nocturnal coming out to see what's going on, confused about why night arrived at what feels like the wrong time.

Space.com skywatching editor Daisy Dobrijevic traveled to the Scoresby Sund off the coast of Greenland to experience the total solar eclipse from the deck of the MS Spitsbergen on the HX Expeditions eclipse voyage, and she's been taking us all along on her journey.

"I couldn't believe my eyes. I knew exactly what to expect — I’ve written about total solar eclipses countless times and given talks about them — but nothing prepared me for the feeling of actually seeing it," Dobrijevic said about her experience watching the eclipse. "I was completely in awe. As thin clouds drifted in towards the end of totality, they only added to the drama and emotion of an already extraordinary sight."

There’s a reason humans have been obsessed with these celestial events for millennia—they are beautiful

MINOR SPOILERS AHEAD! ANYONE YET TO WATCH "A CASE OF CHIAROSCURO" SHOULD PROCEED WITH CAUTION TO AVOID VIOLATING TEMPORAL PRIME DIRECTIVES.

You're on a top-secret mission to recover a lost Federation probe from enemy territory. A close encounter with a Klingon cruiser forces you into hiding on the surface of an alien world, which — thanks, in part, to the local star's radiation making everything appear stylishly monochrome — looks like it's been lifted from a classic 20th-century film noir. You dress up as one of the locals on this occupied world, and quickly learn that you're the spitting image of the leader of the local resistance. What are the chances?

This being "Star Trek", the odds are nowhere near as long as they could — and maybe should — be. In fact, the galaxy is so chock-full of doppelgangers, clones and lookalikes that it's a wonder Una "Number One" Chin-Riley hadn't encountered her double before the latest episode of "Strange New Worlds", "A Case of Chiaroscuro".

(Image credit: Paramount)

This may explain why Dr M'Benga doesn't think anything is particularly amiss. "In a universe as vast as ours, the real mystery is that we don't stumble onto our doppelgangers more often," he claims. "That we have found Una's is a momentary stroke of luck."

That said, the origin stories of Trek's previous escapees from the planet Xerox are usually a little more complex — and outwardly sci-fi — than coincidence. The matter transporters found on every Starfleet vessel, for example, have repeatedly given actors the chance to play two roles at once.

(Image credit: Paramount)

In theory, transporter tech breaks you down into your constituent atoms, beams those particles across space, and reassembles them in the right order at the other end. But, in the event of a glitch, transporter rooms effectively become highly sophisticated 3D printers, creating duplicates indistinguishable from the original beamee.

In the "Original Series" episode "The Enemy Within", James T Kirk is split into two versions of himself, one good, the other evil. In this metaphysical exploration of self, it turns out you can't have one half without the other, forcing Spock and co to reintegrate the two Kirks in order to save their captain.

Will Riker also experiences transporter-induced imposter syndrome in "The Next Generation" episode "Second Chances". He learns that a beaming error on the USS Potemkin created an exact facsimile eight years earlier, and Riker 2.0 has been living alone on the remote Nervala IV ever since. Alas, this alt version (who opts to go by the name of Thomas) doesn't find it easy living in the shadow of the Enterprise-D's highly commended first officer, and eventually quits Starfleet to defect to the Maquis resistance organization.

(Image credit: Paramount)

When Bradward Boimler experiences similar duplication issues in "Lower Decks", it's his double, William, who makes better use of their resources. He ultimately finds himself in the captain's chair of a top-secret Section 31 vessel staffed by doppelgangers from alternative realities, including "Deep Space Nine"'s Dr Bashir, "Enterprise"'s T'Pol, and multiple incarnations of "Voyager"'s perennial ensign, Harry Kim.

"Trek"'s parallel universes are arguably even more conducive to duplication than transporter accidents. Indeed, even the Harry Kim who eventually makes it back from the Delta Quadrant in "Voyager" is an alternative version, transferred from a USS Voyager slightly out of phase with the original. (To be fair, OG Harry had just been sucked into the vacuum of space, so the switcheroo was easy to justify — and good news for actor Garrett Wang.)

But "Star Trek"'s most famous doppelgangers from another dimension hail from the infamous Mirror Universe, where the morally dubious Terran Empire crushes non-Earthers under a bloodthirsty boot — while the Federation traditionally comes in peace, these guys make no secret of their love of shooting to kill. Crews from "Enterprise", "Discovery", the Original Series, "DS9" and "Prodigy" have all come face to face with their evil twins. Few imposters have been quite as easy to spot as Terran Empire Spock, however, whose trademark goatee is something of a giveaway.

(Image credit: Paramount)

Shapeshifters are even trickier customers, seeing as they can — in theory — take the form of anyone they want. Kirk shares facetime with himself when Chameloid Marta impersonates him while messing up their attempt to escape the Rura Penthe penal colony in "Star Trek VI: The Undiscovered Country".

"I can't believe I kissed you," says Kirk. "Must have been your lifelong ambition," Kirk replies — sort that one out, Sigmund Freud.

The metamorphing Changelings of the Dominion also prove a particularly tricksy enemy in "Deep Space Nine", thanks to their ability to replicate everyone from Dr Bashir and General Martok to the Federation's in-house shapeshifter, Odo.

(Image credit: Paramount)

And then there's "Trek"'s dalliances with the more traditional sci-fi trope of cloning, the most famous example showing up just in time for "The Next Generation" crew's final mission.

The Big Bad in the 2002 movie "Nemesis" is Shinzon, a Jean-Luc Picard duplicate created by Romulan scientists to infiltrate the Federation. The irony, of course, is that this clone looks nothing like the source material. In fact, the chances of anyone buying that Tom Hardy will one day look like Patrick Stewart are close to zero — Dr M'Benga may believe that we should bump into our doppelgangers more often, but even he wouldn't fall for that one.

New episodes of "Star Trek: Strange New Worlds" debut on Paramount+ on Thursdays.

Sky & Telescope editors traveled the world, both literally and figuratively, to see the solar eclipse that darkened the world in the most magical way on August 12, 2026. Here are some of their stories.

The post Did You See the Solar Eclipse? Here’s What We Saw, from Around the World appeared first on Sky & Telescope.

Relive the 2026 total solar eclipse, as seen by a drone over Spain

Yesterday (Aug.12), millions of people enjoyed a total solar eclipse as it swept across parts of Greenland, Iceland and Spain, while a partial solar eclipse was visible across much of Europe and northwest Africa.

If all that eclipse excitement has you eager for more, the good news is you won't have to wait long, because two remarkable solar eclipses are coming in 2027. First comes a dramatic "ring of fire" annular solar eclipse on Feb 6, followed six months later by the total solar eclipse on Aug. 2 — an event many eclipse chasers are already calling the "eclipse of the century".

First up, a dazzling "ring of fire"

On Feb. 6, 2027, an annular solar eclipse will be visible across parts of Chile, Argentina and the coastal parts of West Africa, while the partial phase of the eclipse where the moon takes a "bite" out of the sun will be visible across South America and West Africa.

An annular solar eclipse happens when the moon passes directly in front of the sun when it is slightly farther away from Earth than during a total solar eclipse. As such, the moon appears a little smaller in the sky and doesn't completely cover the sun, leaving a brilliant ring of sunlight around the moon's silhouette, the "ring of fire".

The global path of the 'ring of fire' annular solar eclipse on Feb. 6, 2027. (Image credit: Created and annotated by Jamie Carter using MapHub.net. Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Eclipse path from Xavier Jubier.))The "eclipse of the century"

If the "ring of fire" eclipse wasn't enough, 2027 serves up another, even more spectacular eclipse.

On Aug. 2, 2027, the moon's shadow will race across southern Europe, North Africa and the Middle East, treating skywatchers with one of the longest total solar eclipses of the century. At its greatest point, totality will last an extraordinary 6 minutes and 23 seconds — more than twice as long as many other total solar eclipses.

Created using MapHub.net. Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community), path from Xavier M JubierCreated using MapHub.net. Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community), path from Xavier M JubierCreated using MapHub.net. Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community), path from Xavier M JubierCreated using MapHub.net. Source: Esri, Maxar, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community), path from Xavier M Jubier

Combined with favorable August weather across parts of North Africa, it's easy to see why many eclipse enthusiasts are already planning their trips in advance.

If you're thinking about experiencing the Aug. 2, 2027 total solar eclipse for yourself, now is the perfect time to start planning. We've rounded up expert travel tips to help you choose the best viewing location and avoid common pitfalls, as well as 10 unforgettable tours and experiences that will put you right in the heart of one of the greatest celestial events of the century.

A new study shows that each neuron can do multiple computations at once thanks to hundreds of sprawling branches

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We asked a simple question: What’s in kids’ squishy toys? Finding an answer was surprisingly complicated

Satellites high above Earth may soon have fewer places to hide.

San Francisco-based company Astranis announced today (Aug. 13) that it's developing a line of spacecraft called Perceptor, which will keep an eye on satellite activity in geostationary orbit (GEO).

GEO lies 22,236 miles (35,786 kilometers) above Earth, an altitude at which orbital speed matches our planet's rotational velocity. It's therefore a popular destination for communications, weather and reconnaissance spacecraft — and, increasingly, an arena for off-Earth spying, as space powers seek to keep tabs on their competitors' activities.

Astranis currently operates five satellites in this distant orbital realm, which "support the U.S. military, bring connectivity to remote areas and provide critical capabilities like GPS," according to the company's website.

It plans to leverage and extend this expertise with Perceptor, helping the U.S. government and other potential customers learn more about what's happening high above our heads. The new line will be based on Astranis' "MicroGEO" satellite platform, so named because it's smaller than typical GEO craft.

"Astranis provides mission-critical infrastructure for strategic higher orbits. What we found is our means to detect and respond to emerging threats to this infrastructure are sorely lacking," John Gedmark, Astranis' CEO and co-founder, said in a statement today.

"There are blind spots that will be used against us if not eliminated," he added. "With Perceptor, we're meeting the increasing demand for security in GEO with our proven on-orbit platform and ability to produce at scale."

Four Astranis MicroGEO satellites, which launched atop a Falcon 9 rocket in December 2024. (Image credit: Astranis)

Perceptor spacecraft will sport a variety of sensors, which will allow them to take the measure of other satellites and their broader GEO surroundings.

"Multi-angle flybys can assess spacecraft capabilities, help troubleshoot anomalies on friendly spacecraft, and provide additional eyes in a domain where awareness has historically been limited," Astranis' statement reads.

Each Perceptor will also be highly maneuverable, using electric propulsion "to traverse the full GEO arc, repositioning dozens of times over its mission lifetime," company representatives added.

The statement does not provide a target timeline for the first Perceptor missions. But the need for such a capability already exists, as the activities of certain Russian and Chinese satellites show.

In 2020, for example, officials with the U.S. Space Force announced that two Russian spacecraft got within 100 miles (160 kilometers) of an American spy satellite, behavior the branch's then-chief described as "unusual and disturbing."

And, in 2023, experts announced that China's TJS-3 GEO spacecraft had taken close looks at USA 233 and USA 298, both of which are thought to be Space Force spy satellites.

Video: 00:00:04

Yesterday between 20:26 and 20:34 CEST, parts of the Iberian peninsula experienced a total solar eclipse. This animation, composed of images from the Meteosat Third Generation Imager satellite (MTG-I1), caught the Moon’s dark shadow as it passed over Earth’s surface – converging with the advancing twilight shadow as dusk fell over Europe.

From its vantage point in geostationary orbit, MTG-I1 keeps its imaging instruments focused on Europe and northern Africa from a distance of 36 000 km above Earth’s surface. This enabled it to track the Moon’s shadow, called the path of totality, as it swept first over Greenland and Iceland, then over a small part of northeastern Portugal and finally, Spain.

While the total eclipse itself lasted just a few minutes on mainland Europe, a partial eclipse was visible over a much wider area. Spectators were able to see the Moon partially covering the Sun’s disc as far apart as northern Canada, the Nordic countries and the western coast of Africa, as far south as Sierra Leone and Liberia. 

A total solar eclipse occurs when the Moon passes between the Sun and Earth, blocking the face of the Sun for a short period. During totality, a halo of light is visible around the Moon, known as the Sun’s corona.

There are more solar eclipses to come between now and 2028 – watch out for updates on ESA’s solar eclipse activities.

The MTG mission is preparing to place its third satellite in orbit. MTG-I2 is scheduled for launch on 27 August 2026, on board flight VA270 on an Ariane 6 launcher, from Europe’s Spaceport in French Guiana.

APOD

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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Total Solar Eclipse Over Spain

Explanation: On August 12th, 2026, the Moon totally eclipsed the Sun and cast its shadow across Siberia, Greenland, Iceland, Spain, and Portugal. Today’s image features two total solar eclipses viewed from Zaragoza, Spain, one over the Cathedral-Basilica of Our Lady of the Pillar and the other reflecting in the Ebro River. For a few moments, Spain saw its first major total solar eclipse since 1905. Those witnessing totality may experience a chill in the air, the quieting of birds, the confused chirps of insects, and the shared awe of many. It’s the corona’s time to shine as the Sun’s bright disk is blocked by the Moon. Among other reasons to study eclipses, they help scientists understand why the corona is millions of degrees hotter than the Sun’s surface. Enthusiastic citizens can contribute to these studies by recording how wildlife responds, imaging the corona, and monitoring air temperature and clouds.

More spectacular eclipse images: Solar Eclipse of 2026 August 12
Tomorrow’s picture: a mystery

Date: August 13, 2026 Credit & Copyright: Ruiyu Zhang Authors & editors: Keighley Rockcliffe, Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

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Yesterday’s Image APOD: 2026 August 12 – Perseids over a Little Planet

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APOD

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3. APOD: 2026 August 13 – Total…

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APOD

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

Total Solar Eclipse Over Spain

Explanation: On August 12th, 2026, the Moon totally eclipsed the Sun and cast its shadow across Siberia, Greenland, Iceland, Spain, and Portugal. Today’s image features two total solar eclipses viewed from Zaragoza, Spain, one over the Cathedral-Basilica of Our Lady of the Pillar and the other reflecting in the Ebro River. For a few moments, Spain saw its first major total solar eclipse since 1905. Those witnessing totality may experience a chill in the air, the quieting of birds, the confused chirps of insects, and the shared awe of many. It’s the corona’s time to shine as the Sun’s bright disk is blocked by the Moon. Among other reasons to study eclipses, they help scientists understand why the corona is millions of degrees hotter than the Sun’s surface. Enthusiastic citizens can contribute to these studies by recording how wildlife responds, imaging the corona, and monitoring air temperature and clouds.

More spectacular eclipse images: Solar Eclipse of 2026 August 12
Tomorrow’s picture: a mystery

Date: August 13, 2026 Credit & Copyright: Ruiyu Zhang Authors & editors: Keighley Rockcliffe, Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.

Random APOD Generator

Yesterday’s Image APOD: 2026 August 12 – Perseids over a Little Planet

Tomorrow’s Image

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The eROSITA telescope has released its second great catalogue of the X-ray sky with close to two million sources across half the sky, roughly double what it published before. Buried in it is a result from Bonn that matters more than the headline number. A team there went after the faintest part of a massive galaxy cluster, the outer region where fresh material is still arriving along threads of gas stretching between clusters. Nobody had measured that emission before. The gas turns out to be hotter, denser and poorer in heavy elements than the models say it should be.

Blazars are galaxies with a jet aimed almost directly at us, and they flicker across every part of the spectrum at once. Almost everything we think we know about them comes from short observing campaigns just a handful of days, every year or two, in one narrow band of energy. A Polish and German team has now done the opposite, following a single blazar for nearly twenty years with two orbiting observatories and in two observations from 2012 they found something in the spectrum that nobody had predicted.

August has one more astronomical treat in store - a deep partial lunar eclipse!

The post Prepare for the Lunar Eclipse on August 27-28, 2026 appeared first on Sky & Telescope.

Reading the atmosphere of another world means catching starlight as it filters through that planet's air during a transit. The signal is about one part in a million and a true Earth twin transits only once a year, so you cannot simply repeat the measurement until the noise averages away. Each attempt has to work on its own. A team led from Shanghai has proposed the alternative to building an impossibly large mirror in space - nine hundred, one metre telescopes, flying together, watching the same transit and analysing the light together.