There are many worlds and many systems of Universes existing all at the same time, all of them perishable.

— Anaximander 546 BC

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Updated: 2 hours 5 min ago

Does the moon look smaller tonight? Here's why a 'micromoon' rises

Mon, 02/17/2025 - 11:00am
The moon reaches its farthest point from Earth tonight, known as apogee, making it appear ever so slightly smaller in the night sky.
Categories: Astronomy

Watch the sun erupt in new images from NOAA's weather satellite

Mon, 02/17/2025 - 10:00am
A space-based telescope has captured new images of the sun that showcase one of our star's fiery outbursts — and Mercury is in the picture.
Categories: Astronomy

Some planet-forming stars never 'grow up' and lose their 'Peter Pan' disks

Mon, 02/17/2025 - 7:00am
Astronomers used the James Webb Space Telescope to study a planet-forming disk around a low-mass star, finding it contains chemical signatures never seen before in such a disk.
Categories: Astronomy

Astronomers realize mysterious TV signal in their data bounced off an airplane

Mon, 02/17/2025 - 6:00am
By tracking the TV signal back to the plane that was reflecting it towards the Murchison Wide-field Array, astronomers will be able to learn how to remove it from their data.
Categories: Astronomy

'City-killer' asteroid 2024 YR4 could hit the moon instead of us, scientists say

Sun, 02/16/2025 - 11:00am
Asteroid 2024 YR4 has a 2.3% chance of hitting Earth in the year 2032. But according to new estimates, it may have an even smaller chance of hitting the moon instead.
Categories: Astronomy

Continent-size blobs in Earth's mantle are a billion years old, ancient crystals reveal

Sun, 02/16/2025 - 10:00am
New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion.
Categories: Astronomy

'Sailing' satellites of the future could provide early warning of dangerous space weather

Sun, 02/16/2025 - 7:00am
'Sailing' satellites of the future could provide early warning of dangerous space weather
Categories: Astronomy