Ancient Greek astronomers likely observed Uranus as a star, but limited tools and geocentric views kept them from recognizing ...

A new study suggests that unidentified "co-orbital asteroids" around Venus may have the capacity to impact our planet in the ...

The atmosphere itself is… not so fine. It's mostly carbon dioxide, which hey, it's what plants crave, but also a lot of ...

What's happening in the skies over North Texas this month? June holds some spectacular sights in the night and morning sky.

For the next few evenings, the waxing gibbous moon is already well up as skies darken. If you happen to see it, keep in mind ...

Under such scenarios, Mercury frequently crashes into the Sun or Venus, setting off cascading changes that alter the orbits ...

Dozens of NASA's missions to explore the cosmos could be in jeopardy under a budget proposal from the Trump administration.

“In the universe, an absolute vacuum is rare, and most of the universe is very low-density high-temperature plasma,” said Chris Impey, an astronomer at the University of Arizona. “In principle, sound ...

Astronomers reported Monday that the probability of the two spiral galaxies colliding is less than previously thought, with a ...

In this episode, Astronomy magazine Editor Dave Eicher invites you to head out before sunrise and face east. There, you’ll ...

Venus will rise in the eastern sky in the pre-dawn hours of June 1 alongside Saturn and Neptune. Venus reaches its point of ...

Venus reaches its greatest western elongation (46°) from the Sun at midnight EDT. Earth’s sister planet is now visible in the ...