As Venus retrograde ends and Venus stations direct, uncomfortable truths come to light. Discover what this means for your ...

Meet the author: Dr. Phil Plait is an astronomer, author, and science communicator with a PhD in astronomy at the University of Virginia. He has written four books on astronomy and consulted on space ...

It was a beautiful summer evening in Western Colorado. The Sun had just set and our bright sister planet was just starting to ...

Four planets in the solar system are about to appear in alignment in the night sky. Here's how stargazers will be able to see ...

Researchers at Washington University in St. Louis have run new calculations, suggesting that Venus' outer crust could be ...

A new way to measure the length of Uranus’s day could also help determine the rotation rates of other celestial ...

A day at Uranus just got a little longer. Scientists reported Monday that observations by the Hubble Space Telescope have ...

An international team of astronomers using the NASA/ESA Hubble Space Telescope have made new measurements of Uranus' interior ...

The rotation of the moon and other planets provides a natural rhythm and framework for understanding time, nature and human ...

Planets' temperatures are largely influenced by their structural characteristics and proximity to the Sun, however, Venus ...

Venus — a hot planet pocked with tens of thousands of volcanoes — may be even more geologically active near its surface than previously thought. New calculations by researchers at Washington ...