"When beggars die, there are no comets seen;
The heavens themselves blaze forth the death of princes."

— William Shakespeare
Julius Cæsar

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China’s LineShine supercomputer tops global rankings with almost 2 quintillion calculations per second

Scientific American.com - Tue, 06/30/2026 - 1:00pm

The speedy machine displaces the U.S.’s Lawrence Livermore National Laboratory’s El Capitan at the top of the TOP500 rankings of the world’s fastest supercomputers

Categories: Astronomy

The most detailed survey of the universe ever conducted starts now

New Scientist Space - Cosmology - Tue, 06/30/2026 - 12:00pm
The Vera C. Rubin Observatory in Chile is beginning its extraordinary survey of the southern sky, which will use the largest camera ever built to map the solar system, the galaxy and beyond
Categories: Astronomy

The most detailed survey of the universe ever conducted starts now

New Scientist Space - Space Headlines - Tue, 06/30/2026 - 12:00pm
The Vera C. Rubin Observatory in Chile is beginning its extraordinary survey of the southern sky, which will use the largest camera ever built to map the solar system, the galaxy and beyond
Categories: Astronomy

This physicist is hunting for the biggest black hole in the universe

New Scientist Space - Cosmology - Tue, 06/30/2026 - 12:00pm
Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously large black holes” might be used by alien civilisations, and what makes them such an intriguing possibility
Categories: Astronomy

This physicist is hunting for the biggest black hole in the universe

New Scientist Space - Space Headlines - Tue, 06/30/2026 - 12:00pm
Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously large black holes” might be used by alien civilisations, and what makes them such an intriguing possibility
Categories: Astronomy

London botanic gardens digitizes 7 million specimens

Scientific American.com - Tue, 06/30/2026 - 12:00pm

As Kew Botanic Gardens completes a scan of its collections, AI tools could help in the fight against biodiversity loss

Categories: Astronomy

#799: Heavy Lift Rockets

Astronomy Cast - Tue, 06/30/2026 - 11:47am

The Saturn 5 was a monster, capable of sending humans and a lander to the Moon and bringing them back again. But the number of heavy lift rockets since then has gotten pretty sparse. Now, with tens if not hundreds of thousands of satellites in the works, giant new space telescopes and multi-ton lunar landers in development there are heavy lift solutions to match. So let’s talk about them! From yesterday's Saturn V to today's Ariane VI, rockets capable of launching large telescopes or small space stations in a single go are modern marvels. They are also wildly dangerous, and not exactly compatible. Let's look at today's fleet of rockets and just what they're accomplishing. 

Categories: Astronomy

Earth Microbes Can Survive Individual Martian Hazards—and Evade Astronaut Immune Systems

Universe Today - Tue, 06/30/2026 - 11:36am

Hopefully, we’re about to travel back to the Moon relatively soon. And while the original “giant leap for mankind” was taken by a human, Neil Armstrong brought a plethora of other forms of life along with him. Humans themselves are essentially walking ecosystems, and understanding how our microbial companions survive in the harsh environments of space will be critical to ensure the health and safety of future astronauts, no matter where their giant leaps might be. A new PhD thesis from Tommaso Zaccaria at Radboud University showcases just how well-suited to some of these harsh environments terrestrial pathogens actually are.

Categories: Astronomy

Apply now to ESA's Junior Professional Programme

ESO Top News - Tue, 06/30/2026 - 11:30am

Are you passionate about space and looking to build a long-term career in the European space sector? Do you have less than three years of professional experience and a Master’s degree? The European Space Agency is offering a unique opportunity through its Junior Professional Programme (JPP), designed to cultivate the next generation of space professionals. If you dream of contributing to cutting-edge space missions and working in an international, dynamic environment, this programme is your gateway to an exciting future at ESA. Apply now to join us as a Junior Professional! 

Categories: Astronomy

Starry Chandelier Cluster

NASA Image of the Day - Tue, 06/30/2026 - 11:04am
This NASA/ESA Hubble Space Telescope image features the globular cluster NGC 6723, sometimes called the Chandelier Cluster.
Categories: Astronomy, NASA

Starry Chandelier Cluster

NASA - Breaking News - Tue, 06/30/2026 - 11:02am
ESA/Hubble & NASA, A. Sarajedini, G. Piotto

This image released on June 26, 2026, features the globular cluster NGC 6723, sometimes called the Chandelier Cluster. Like its namesake, it sparkles with countless lights. However, each ‘lightbulb’ in this chandelier is an individual star 27,000 light-years away in the constellation Sagittarius (the Archer).

Globular clusters like NGC 6723 contain some of the oldest stars in our galaxy. These clusters have ages that often exceed 10 billion years old, and some are nearly as old as the universe itself. Astronomers think globular clusters are some of the first structures that formed in our galaxy, coalescing potentially billions of years before the thin disk of stars in which our Sun orbits. The details of how globular clusters formed, however, are not yet certain.

Learn more about the Chandelier Cluster.

Image credit: ESA/Hubble & NASA, A. Sarajedini, G. Piotto

Categories: NASA

Starry Chandelier Cluster

NASA News - Tue, 06/30/2026 - 11:02am
ESA/Hubble & NASA, A. Sarajedini, G. Piotto

This image released on June 26, 2026, features the globular cluster NGC 6723, sometimes called the Chandelier Cluster. Like its namesake, it sparkles with countless lights. However, each ‘lightbulb’ in this chandelier is an individual star 27,000 light-years away in the constellation Sagittarius (the Archer).

Globular clusters like NGC 6723 contain some of the oldest stars in our galaxy. These clusters have ages that often exceed 10 billion years old, and some are nearly as old as the universe itself. Astronomers think globular clusters are some of the first structures that formed in our galaxy, coalescing potentially billions of years before the thin disk of stars in which our Sun orbits. The details of how globular clusters formed, however, are not yet certain.

Learn more about the Chandelier Cluster.

Image credit: ESA/Hubble & NASA, A. Sarajedini, G. Piotto

Categories: NASA

Vera C. Rubin Observatory Begins Its Long-Awaited All-Sky Survey

Sky & Telescope Magazine - Tue, 06/30/2026 - 11:02am

The telescope should spot billions of astronomical objects in the next 10 years.

The post Vera C. Rubin Observatory Begins Its Long-Awaited All-Sky Survey appeared first on Sky & Telescope.

Categories: Astronomy

Babies are born with the neural foundations for maths

New Scientist Space - Cosmology - Tue, 06/30/2026 - 11:00am
Brain recordings from newborns reveal the first neural evidence that humans are born with an innate sense of numbers
Categories: Astronomy

Babies are born with the neural foundations for maths

New Scientist Space - Space Headlines - Tue, 06/30/2026 - 11:00am
Brain recordings from newborns reveal the first neural evidence that humans are born with an innate sense of numbers
Categories: Astronomy

Weaving the Future of Space Suits

Universe Today - Tue, 06/30/2026 - 10:20am

The famous opening scene of the Martian has Mark Watney stabbed in the torso with a communications antenna. While this accident sets up the plot for what is widely regarded as a modern classic of sci-fi storytelling, what if he was wearing a space suit that would have stopped the impact altogether? That’s the idea behind a recent NASA Small Business Innovation Research (SBIR) Phase I program run by researchers from Materials Research & Design, Fiber Materials, Inc, and NASA’s Johnson Space Center. Their work, which was recently presented at the National Space & Missile Materials Symposium, showcased a type of advanced 3D-reinforced fabric that could have saved Watney and his compatriots a whole lot of trouble.

Categories: Astronomy

Stunning new image of the Milky Way reveals its glittering heart

Scientific American.com - Tue, 06/30/2026 - 9:30am

This brilliant new image, taken by Europe’s Euclid space telescope, offers a preview of the kind of imaging that will be possible with NASA’s upcoming Roman telescope

Categories: Astronomy

I’m the first person whose life was saved by CRISPR base editing

New Scientist Space - Cosmology - Tue, 06/30/2026 - 9:00am
When standard leukaemia treatments failed, 13-year-old Alyssa Tapley was told she had only weeks left – but then she was offered an experimental procedure
Categories: Astronomy

I’m the first person whose life was saved by CRISPR base editing

New Scientist Space - Space Headlines - Tue, 06/30/2026 - 9:00am
When standard leukaemia treatments failed, 13-year-old Alyssa Tapley was told she had only weeks left – but then she was offered an experimental procedure
Categories: Astronomy

Time to say goodbye to Sentinel-1A

ESO Top News - Tue, 06/30/2026 - 8:30am

After 12 years of exceptional service, the pioneering Copernicus Sentinel-1A radar satellite has reached the end of its mission. Originally designed for a seven-year life in orbit, the satellite has exceeded expectations, not only by its longevity, but through the extraordinary impact of its data, which have deepened our understanding of our changing planet and supported a wide range of operational services and laid the foundation for scientific discoveries.

Categories: Astronomy