"Time and space are modes in which we think and not conditions in which we live."

— Albert Einstein

Astronomy

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APOD - Wed, 12/17/2025 - 4:00pm

What’s happening over that tree?


Categories: Astronomy, NASA

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APOD - Wed, 12/17/2025 - 4:00pm

Where are all of these meteors coming from?


Categories: Astronomy, NASA

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APOD - Wed, 12/17/2025 - 4:00pm

What would it be like to fly over the


Categories: Astronomy, NASA

Orion and the Ocean of Storms

APOD - Wed, 12/17/2025 - 4:00pm

On December 5, 2022,


Categories: Astronomy, NASA

Northern Fox Fires

APOD - Wed, 12/17/2025 - 4:00pm

Northern Fox Fires


Categories: Astronomy, NASA

Galaxies in the River

APOD - Wed, 12/17/2025 - 4:00pm

Large galaxies grow by eating small ones.


Categories: Astronomy, NASA

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APOD - Wed, 12/17/2025 - 4:00pm

Stars are forming in the Soul of the Queen of


Categories: Astronomy, NASA

Jared Isaacman Confirmed to Head NASA at Pivotal Moment for the Space Agency

Scientific American.com - Wed, 12/17/2025 - 3:30pm

Billionaire Jared Isaacman is taking the reins at NASA at a challenging time for the space agency, as it faces budget cuts and technical hurdles that could scuttle its most ambitious missions

Categories: Astronomy

Scientists Are Baffled by This Bizarre Lemon-Shaped Exoplanet

Scientific American.com - Wed, 12/17/2025 - 2:20pm

Astronomers using the James Webb Space Telescope have discovered a bizarre-looking exoplanet that defies explanation

Categories: Astronomy

New Views of Saturn’s Moon Titan and Jupiter’s Moon Europa Complicate Ocean Worlds Theory

Scientific American.com - Wed, 12/17/2025 - 2:00pm

Oceans hiding within the crusts of distant moons are tantalizing targets for scientists looking for life beyond Earth

Categories: Astronomy

New Radar Data Chills Prospects of a Subglacial Lake on Mars

Sky & Telescope Magazine - Wed, 12/17/2025 - 1:01pm

There could be liquid water trapped under the southern polar cap of Mars. But new observations suggest otherwise.

The post New Radar Data Chills Prospects of a Subglacial Lake on Mars appeared first on Sky & Telescope.

Categories: Astronomy

Massive Stars Make Their Mark in Hubble Image

NASA Image of the Day - Wed, 12/17/2025 - 12:43pm
This NASA/ESA Hubble Space Telescope image features the blue dwarf galaxy Markarian 178 (Mrk 178) against a backdrop of distant galaxies in all shapes and sizes. Some of these distant galaxies even shine through the diffuse edges of Mrk 178.
Categories: Astronomy, NASA

Strange lemon-shaped exoplanet defies the rules of planet formation

New Scientist Space - Cosmology - Wed, 12/17/2025 - 11:30am
A distant world with carbon in its atmosphere and extraordinarily high temperatures is unlike any other planet we’ve seen, and it’s unclear how it could have formed
Categories: Astronomy

Strange lemon-shaped exoplanet defies the rules of planet formation

New Scientist Space - Space Headlines - Wed, 12/17/2025 - 11:30am
A distant world with carbon in its atmosphere and extraordinarily high temperatures is unlike any other planet we’ve seen, and it’s unclear how it could have formed
Categories: Astronomy

Comet 3I/ATLAS Has A Green Glow In New Color Images From Gemini North

Universe Today - Wed, 12/17/2025 - 11:14am

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the Sun on its path out of the Solar System. The data were collected during a Shadow the Scientists session — a unique outreach initiative that invites students around the world to join researchers as they observe the Universe on the world’s most advanced telescopes.

Categories: Astronomy

Chronic fatigue syndrome seems to have a very strong genetic element

New Scientist Space - Cosmology - Wed, 12/17/2025 - 11:00am
The largest study so far into the genetics of chronic fatigue syndrome, or myalgic encephalomyelitis, has implicated 259 genes – six times more than those identified just four months ago
Categories: Astronomy

Chronic fatigue syndrome seems to have a very strong genetic element

New Scientist Space - Space Headlines - Wed, 12/17/2025 - 11:00am
The largest study so far into the genetics of chronic fatigue syndrome, or myalgic encephalomyelitis, has implicated 259 genes – six times more than those identified just four months ago
Categories: Astronomy

ESA's XMM-Newton Examines Comet 3I/ATLAS Prior to Closest Earth Passage Friday

Universe Today - Wed, 12/17/2025 - 10:47am

Everyone’s favorite interstellar comet posed for one more portrait recently. The European Space Agency’s XMM-Newton mission nabbed 3I/ATLAS on December 3rd from about 283 million kilometers distant. This comes as the comet is set to make its closest passage versus Earth this coming Friday, on December 19th.

Categories: Astronomy

Scientists Denounce Trump’s Plan to Kill Crucial Atmospheric Science Center

Scientific American.com - Wed, 12/17/2025 - 10:22am

The U.S. government is dismantling the National Center for Atmospheric Research, jettisoning key climate science projects in the process

Categories: Astronomy

Proba-3 fills the solar observation gap

ESO Top News - Wed, 12/17/2025 - 8:45am

It has been a busy year for the European Space Agency’s Proba-3 mission. The satellite duo has already created more than 50 artificial solar eclipses in orbit since the mission operations began less than a year ago. The resulting data confirm Proba-3's ability to provide the missing puzzle piece in our observations of the Sun's enigmatic atmosphere – the corona.

Categories: Astronomy