A team of international researchers say they’ve uncovered new data on the world’s first recorded solar eclipse using a surprising source — ancient Chinese texts. These findings could help us understand more about the progression of the Earth’s rotation through the centuries.
The eclipse in question took place on July 17, 709 BCE, according to a chronicle titled “Spring…
See the metal guts of a satellite in this wild X-ray view | Space photo of the day for Dec. 4, 2025
December 5, 2025
In a hangar outside Zurich, a veteran of low Earth orbit lay under a kind of medical scanner no spacecraft was ever designed for. The patient was the European Retrievable Carrier mission, or EURECA, a 16.-4-foot-long (5 meters) European satellite that flew on the space…
Why is the universe made of matter? These 'ghost particle' experiments could help us find out
December 5, 2025
Scientists have inched a step closer to solving an enduring mystery in physics — why the universe contains any matter at all — thanks to a newly combined analysis from two of the world’s leading neutrino experiments.
By pooling nearly 16 years of measurements, the…
Don't miss the last full moon of 2025 as the 'Cold Supermoon' takes to the autumn sky on Dec. 4
December 5, 2025
Get ready stargazers, the final full moon of 2025 rises tonight! Here’s what to expect when the “Cold Supermoon” looms large over the eastern horizon at sunset on Dec. 4.
The exact moment of December’s full moon phase will take place at 8:13 p.m. EST (2313 UTC) on Dec. 4, at which time the lunar disk will appear fully illuminated opposite the sun in Earth’s sky…
A 'super-puff' exoplanet is losing its atmosphere, and the James Webb Space Telescope had a look
December 4, 2025
Astronomers have spotted a distant world “shedding” its atmosphere into space in real time, creating a giant companion cloud of gas that travels ahead of the planet as it orbits its star.
Observations from the James Webb Space Telescope (JWST) have revealed an…
Northern lights may be visible in 15 states tonight
December 4, 2025
The northern lights could light up skies across the U.S. tonight, as a high-speed solar wind stream from a coronal hole and an incoming coronal mass ejection (CME) are forecast to hit Earth, according to the National Oceanic and Atmospheric Administration’s (NOAA)…
NASA discovers 'space gum' and sugars 'crucial to life' in asteroid Bennu samples brought to Earth (video)
December 4, 2025
Scientists have detected several sugars essential for life in the samples brought back from asteroid Bennu, NASA announced on Tuesday (Dec. 2).
Analyzing pristine fragments of the asteroid delivered to Earth by NASA’s OSIRIS-REx spacecraft in 2023, a team led by Yoshihiro Furukawa of Tohoku University in Japan found ribose, a crucial building block of RNA, and glucose, an energy-rich sugar…
I watched scientists track interstellar comet 3I/ATLAS leaving the solar system in real-time: 'This is some prime-time science'
December 3, 2025
It was 4 a.m. on Nov. 25 at the top of Hawaii’s dormant Maunakea volcano. The process to view the comet took less time than expected.
On the main screen, the subject at hand, interstellar comet 3I/ATLAS was a small, fuzzy blob drifting through a crowded field of stars.
With Cyber Monday over, you can still save $50 on this smart telescope, our expert called 'small but mighty'
December 3, 2025
The Cyber Monday sales are behind us, but there are still bargains to be had if you hurry. This beginner-friendly ZWO Seestar S30 smart telescope is $50 off at Amazon and it’s the perfect way to bring the cosmos closer.
You can get the ZWO Seestar S30 on sale for $349…
Trump pick for NASA chief Jared Isaacman pledges to move space shuttle Discovery to Houston, lawmaker says
December 3, 2025
The controversial plan to move the space shuttle Discovery to Houston reportedly has a powerful new backer.
Jared Isaacman, President Donald Trump’s pick to lead NASA, has pledged his support for Discovery’s relocation, according to U.S. Sen. John Cornyn (R-Texas).
Cornyn, who spearheaded the Discovery plan along with Sen. Ted Cruz (R-Texas), made the announcement in an emailed…
