Behold, directly overhead, a certain strange star was suddenly seen...
Amazed, and as if astonished and stupefied, I stood still.

— Tycho Brahe

Feed aggregator

Second Lady Usha Vance, NASA Astronaut Suni Williams Celebrate Reading

NASA - Breaking News - Tue, 08/05/2025 - 11:57am
NASA/Robert Markowitz

Second Lady Usha Vance and NASA astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center in Houston for a summer reading challenge event, through which the Second Lady encourages youth to seek adventure, imagination, and discovery between the pages of a book.

Image credit: NASA/Robert Markowitz

Categories: NASA

Second Lady Usha Vance, NASA Astronaut Suni Williams Celebrate Reading

NASA News - Tue, 08/05/2025 - 11:57am
NASA

Second Lady Usha Vance and NASA Astronaut Suni Williams listen to the audience in this image from Aug. 4, 2025. Ms. Vance joined Williams at NASA’s Johnson Space Center in Houston for a summer reading challenge event, through which the Second Lady encourages youth to seek adventure, imagination, and discovery between the pages of a book.

Image credit: NASA

Categories: NASA

Second Lady Usha Vance, NASA Astronaut Suni Williams Celebrate Reading

NASA Image of the Day - Tue, 08/05/2025 - 11:57am
Second Lady Usha Vance hosted a special Summer Reading Challenge event at NASA’s Johnson Space Center in Houston on Aug. 4, 2025. She was joined by NASA astronaut Suni Williams to read a space-themed book to children in grades K-8 as part of her initiative to promote literacy.
Categories: Astronomy, NASA

Honoring the Women of Astronomy

Sky & Telescope Magazine - Tue, 08/05/2025 - 11:47am

Even today, the names of women in astronomy are not as well known as they should be.

The post Honoring the Women of Astronomy appeared first on Sky & Telescope.

Categories: Astronomy

NASA Boosts Plans for Nuclear Reactor on the Moon

Scientific American.com - Tue, 08/05/2025 - 11:40am

Spurred by competition from China and Russia, the Trump administration is pushing for nuclear power on the moon by 2030

Categories: Astronomy

Alien life on Mars or Europa could survive off cosmic rays instead of the sun, scientists suggest

Space.com - Tue, 08/05/2025 - 11:00am
Electrons released when cosmic rays strike water-ice can provide energy for microbes and facilitate the formation of complex organic molecules.
Categories: Astronomy

Celebrities in space quiz: Do you know the stars among the stars?

Space.com - Tue, 08/05/2025 - 10:02am
From movie stars to moguls, test your knowledge of which celebrities have gone to the final frontier.
Categories: Astronomy

The Perseid meteor shower 2025 peaks Aug. 12-13: Here's what to expect from the dazzling cosmic light show

Space.com - Tue, 08/05/2025 - 10:00am
The Perseids are one of the most visually spectacular meteor showers of the year and are known for spawning impressive fireballs that light up the night sky.
Categories: Astronomy

'Alien: Earth' is an intelligent and thought-provoking bloodbath, and everything we ever wanted from an 'Alien' show (review)

Space.com - Tue, 08/05/2025 - 9:00am
Noah Hawley's daring exploration of the Alien universe makes for a great sci-fi TV show that asks big questions without neglecting the fun factor.
Categories: Astronomy

Extremely Large Telescope gets a roof | Space photo of the day for August 5, 2025

Space.com - Tue, 08/05/2025 - 8:00am
The world's largest optical telescope is still under construction but is raising the roof on its progress.
Categories: Astronomy

Mars Glaciers Have More Water Content than Previously Thought

Universe Today - Tue, 08/05/2025 - 7:33am

On the slopes of Martian mountains and craters clings what appears to be flowing honey, coated in dust and frozen in time. In reality, these features are incredibly slow-moving glaciers, and their contents were once thought to be mostly rock enveloped in some ice.

Categories: Astronomy

Why Land Detection Is Critical for Confirming Exoplanetary Life

Universe Today - Tue, 08/05/2025 - 7:33am

How can identifying land on exoplanets help scientists better understand whether an exoplanet could harbor life? This is what a recently submitted study hopes to address as a team of researchers investigated how identifying land on exoplanets could help dispel waterworld false positives, which occur when the data indicates an exoplanet contains deep oceans (approximately 50 Earth oceans), hence the name “waterworld”. This study has the potential to help scientists develop more efficient methods for classifying exoplanets and their compositions, specifically regarding whether they contain life as we know it, or even as we don’t know it.

Categories: Astronomy

What if a Baby Was Born Space?

Universe Today - Tue, 08/05/2025 - 7:33am

If humans are planning to live off-world and colonise planets like Mars, that includes having children. But deep space and the surface of Mars aren't Earth, and there are several hazards that a gestating foetus will face, mainly microgravity and galactic cosmic rays. In a new paper, a researcher breaks down pregnancy into 10 sequential stages, evaluating what the implications of those conditions would be at each step. The author suggests that radiation would be the bigger risk.

Categories: Astronomy

How Satellites Are Silencing the Universe

Universe Today - Tue, 08/05/2025 - 7:33am

Imagine if every time you turned on your phone, it accidentally jammed radio telescopes trying to detect alien signals. That's essentially what's happening as thousands of internet satellites flood Earth's orbit, creating electronic noise that's drowning out the whispers from black holes, distant galaxies, and the Big Bang itself. A massive new study reveals that our quest to connect every region of the planet is accidentally sabotaging our ability to answer the biggest questions in science and the problem is getting worse with every satellite launch.

Categories: Astronomy

Terracotta Is a 3,000-Year-Old Solution to Fighting Extreme Heat

Scientific American.com - Tue, 08/05/2025 - 6:45am

Companies are adapting this humble clay-based ceramic to keep people cool—without electricity

Categories: Astronomy

Solar farms could help find dangerous asteroids, scientist says

Space.com - Tue, 08/05/2025 - 6:00am
By transforming idle heliostats into asteroid detectors, scientists aim to develop a cost-effective method for spotting faint, fast-moving space rocks.
Categories: Astronomy

We gave this star projector five stars in our review, and now it's at its joint-lowest price ever on Amazon

Space.com - Tue, 08/05/2025 - 5:48am
You can save 20% on the Hommkiety Galaxy Projector on Amazon, which we praised for its build quality and high-end projections.
Categories: Astronomy

First MetOp-SG satellite sealed within Ariane 6 fairing

ESO Top News - Tue, 08/05/2025 - 4:41am

As preparations to launch Europe’s first MetOp Second Generation, MetOp-SG-A1, satellite continue on track, the team at Europe’s Spaceport in Kourou, French Guiana, has bid a heartfelt farewell to this precious satellite as it was sealed from view within the Ariane 6 rocket’s fairing.

This all-new weather satellite, which hosts the first Copernicus Sentinel-5 instrument, is set to take to the skies on 13 August at 02:37 CEST (12 August 21:37 Kourou time).

Categories: Astronomy

Deep-living microbes could 'eat' energy generated by earthquakes

New Scientist Space - Cosmology - Mon, 08/04/2025 - 6:00pm
When rocks fracture in underground faults, they generate a variety of chemical compounds that could provide more energy sources for microbes in Earth’s depths
Categories: Astronomy

Deep-living microbes could 'eat' energy generated by earthquakes

New Scientist Space - Space Headlines - Mon, 08/04/2025 - 6:00pm
When rocks fracture in underground faults, they generate a variety of chemical compounds that could provide more energy sources for microbes in Earth’s depths
Categories: Astronomy