Watch the stars and from them learn. To the Master's honor all must turn, Each in its track, without a sound, Forever tracing Newton's ground

— Albert Einstein

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

Southern Splendors on Safari

Sky & Telescope Magazine - Mon, 08/04/2025 - 5:11pm

Sky & Telescope Associate Editor Sean Walker and Contributing Editor Stephen James O’Meara accompanied nine adventurers on a stargazing safari for an immersive experience in the African bush in Botswana.

The post Southern Splendors on Safari appeared first on Sky & Telescope.

Categories: Astronomy

James Webb Space Telescope revisits a classic Hubble image of over 2,500 galaxies

Space.com - Mon, 08/04/2025 - 5:00pm
The image reveals over 2,500 galaxies, many of which are seen as they were during the first billion years of cosmic history.
Categories: Astronomy

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APOD - Mon, 08/04/2025 - 4:00pm

Is the Helix Nebula looking at you?


Categories: Astronomy, NASA

'Predator: Badlands' looks like it's taking inspiration from an unlikely ancestor — a divisive 20-year-old video game

Space.com - Mon, 08/04/2025 - 4:00pm
A brutal alien planet isn't quite the same as future Earth, but Predator: Concrete Jungle has more than a few things in common with Predator: Badlands.
Categories: Astronomy

How to Watch the Fall Bird Migration Happening Now

Scientific American.com - Mon, 08/04/2025 - 3:36pm

Birds are starting to make their way south for the winter, and you’ve got a front-row seat to the show

Categories: Astronomy

You can design the wheels for NASA's next moon vehicle with the 'Rock and Roll Challenge

Space.com - Mon, 08/04/2025 - 3:00pm
NASA is calling on the public to help shape the future of lunar exploration by designing the next generation of wheels capable of navigating the moon's harsh terrain.
Categories: Astronomy

How Space Construction Will Transform Life on Our Planet.

Universe Today - Mon, 08/04/2025 - 2:35pm

Imagine 3D printing an entire building from Moon dust, or having robots construct disaster relief shelters while humans stay safely away from danger. Imagine construction sites where materials never run out because they're literally made from the dirt beneath your feet, and where every structure is built with manufacturing level precision. What sounds like science fiction is becoming reality as engineers solve the ultimate construction puzzle, building on other planets. The innovations being pioneered for lunar bases and Martian colonies are about to transform every construction site on our home planet.

Categories: Astronomy

Can we send a spacecraft to intercept interstellar object 3I/ATLAS?

New Scientist Space - Cosmology - Mon, 08/04/2025 - 2:00pm
Scientists are exploring various proposals to repurpose existing spacecraft in order to chase after the interstellar object 3I/ATLAS and take a closer look – but time is against them
Categories: Astronomy

Can we send a spacecraft to intercept interstellar object 3I/ATLAS?

New Scientist Space - Space Headlines - Mon, 08/04/2025 - 2:00pm
Scientists are exploring various proposals to repurpose existing spacecraft in order to chase after the interstellar object 3I/ATLAS and take a closer look – but time is against them
Categories: Astronomy

NASA's Europa Clipper radar passes key test during Mars flyby

Space.com - Mon, 08/04/2025 - 2:00pm
NASA's Europa Clipper spacecraft successfully tested its ice-penetrating radar system during a close flyby of Mars earlier this year.
Categories: Astronomy

Moonquakes could pose threat to future lunar bases, scientists say

Space.com - Mon, 08/04/2025 - 1:00pm
New research suggests moonquakes rooted in ancient fault systems could threaten modern moon missions.
Categories: Astronomy

Perseids Meteor Shower

NASA Image of the Day - Mon, 08/04/2025 - 12:37pm
In this 30 second exposure photograph, a meteor streaks across the sky during the annual Perseid and Alpha Capricornids meteor showers, Sunday, Aug. 3, 2025, in Spruce Knob, West Virginia.
Categories: Astronomy, NASA

How Teen Mathematician Hannah Cairo Disproved a Major Conjecture in Harmonic Analysis

Scientific American.com - Mon, 08/04/2025 - 12:30pm

When she was just 17 years old, Hannah Cairo disproved the Mizohata-Takeuchi conjecture, breaking a four-decade-old mathematical assumption

Categories: Astronomy