A daily update by email. Science news, great photos, sky alerts.
The zodiacal light is an eerie light extending up from the horizon. During the months around the March equinox is a good time to see it. How to see it, here.
Scientists using the Event Horizon Telescope imaged the polarized light from our Milky Way's black hole for the first time. Learn more about what that means.
Sun news for March 27, 2024. AR3615 continues to dominate flare production, but is it nearing its end? It is decaying and nearing the limb. Time will tell.
Only 12 days to go to the April 8, 2024, total solar eclipse! Astronomer Rick Fienberg tells how and when to protect your eyes in today's video.
Visible planets in March 2024. Only 12 days till the total solar eclipse! Astronomer Rick Fienberg explains HOW and WHEN to protect your eyes.
There was a bridge collapse in Baltimore, Maryland, yesterday, and rescue operations are ongoing. A container ship struck one of the bridge supports.
2 new studies suggest the subsurface ocean on Jupiter's moon Europa may not be as habitable as previously thought, due to a geologically inactive seafloor.
A new study found chimpanzees in a zoo in South Africa stayed in tight groups in their previous territory even after their enclosure was enlarged and upgraded.
Scientists discovered a spike in sea level in 2023 as a result of El Niño conditions. This data comes from 30 years of satellite and ground-based observations.
With the total solar eclipse approaching, counterfeit and fake eclipse glasses are polluting the marketplace. Here's how to make sure you get the right thing.
As Earth makes its grand tour around the sun each year, the constellations all shift westward in our sky. Orion is a good one to notice.
The March full moon on March 24-25, 2024, is near the bright star Spica in the constellation Virgp. There's also a penumbral lunar eclipse!
A study from an international team of scientists shows it might be possible to detect microscopic life in ice grains in plumes of ocean moons like Enceladus.
The 1st of this year's 4 eclipses will flit by like a ghost in the night between March 24 and 25. It's a penumbral lunar eclipse, visible in North America. Charts and more from Guy Ottewell here.
A penumbral lunar eclipse happens overnight on March 24-25, 2024, bringing a subtle shading to the moon. See where it's visible and more, here.
What is dark matter? It doesn't emit light. It hasn't been directly observed. Yet it appears to exist and to exert a major influence on galaxies.
Researchers studied nearby, dark-matter dominated dwarf galaxies. They were looking for gamma rays resulting from dark matter annihilation or decay.
If the moon orbited Earth on the same plane that Earth circles the sun, we'd have an eclipse at every full and new moon. Here's why we don't.
What is a galaxy? We live in a galaxy called the Milky Way. But there is so much more to know about these grand and glorious star islands in space!
The Milky Way is once again rising in the early morning sky. Astrophotographers are taking the opportunity to capture great photos of our home galaxy.