Space
Life on Enceladus? Chances get big boost in 2 new studies
Is there life on Enceladus? Two new studies show that the chances for life in the ocean of this Saturn moon are even greater than once thought.
Earth
And the Fat Bear Week winner is … Backpack!
Congrats to Backpack, the winner of Fat Bear Week 2026! Take a look at the final brackets and see where your favorite fatties fell.
Earth

What are the world’s loudest birds? Here are 2 contenders

Researchers at the University of Massachusetts Amherst said the bare-throated bellbird and red-legged seriema are 2 contenders for world's loudest birds.
Astronomy Essentials
Tonight

Visible planets and night sky guide for October

Visible planets and night sky guide. Venus is disappearing! Watch a video here. And look for the moon near two bright stars, Capella and Aldebaran.
Sun

Sun news: Heart-shaped coronal hole facing Earth?

Sun news October 1, 2026: What does the coronal hole on today's sun look like to you? A heart ... or something more sinister?
Astronomy Essentials

Stargazing tips! 10 great tips for beginning astronomers

If you're new to observing the night sky, check out our top 10 stargazing tips for beginners. We'll help you explore and expand your love for astronomy.
Space

JUICE mission completes flyby of Earth: New pics!

The JUICE mission made a successful flyby of Earth on September 28. See new images of Earth and the moon here. The spacecraft will reach Jupiter in 2031.
Space

Water systems on early Mars were complex and hot

NASA's Perseverance rover has found evidence of ancient complex water systems on early Mars, including hot hydrothermal activity.
Space

Mars calendar year begins September 30: Happy New Year, Mars!

Mars calendar year 39 begins on September 30, 2026. If you’re looking for a reason to celebrate, here’s to a Happy New Year ... on Mars.
Brightest Stars

Alpha Cephei, or Alderamin, is a fast-spinning star

Meet Alpha Cephei, in the constellation Cepheus the King. It’s spinning so fast that it appears like a slightly flattened beach ball.