This hot neighbor, with its surface veiled by thick clouds, hasn't benefited from the attention showered on Mars and the moon. But Venus might offer insights into Earth's future.

Launched in 2018, the BepiColombo mission will have the first of its 2 encounters with Venus - while on its way to Mercury - in October 2020. Coordinated observations at that time will involve 2 spacecraft and multiple ground-based telescopes. 

Dust devils are common are common on Earth, but ubiquitous on Mars, a desert world. Scientists are using drones carrying cameras and other instruments to gain new insights.

This star undergoes a long-term dimming that's so mysterious it was, at one time, proposed as possible evidence of an alien culture. Now, scientists say, a disk of debris - torn from a melting exomoon - might explain Tabby's Star.

Pulsars are the compact remnants of supernovae. They have strong magnetic fields and rotate rapidly. This one is spinning 707 times a second! Astronomers just discovered this pulsar is emitting high-energy gamma rays.

Could a collision between 2 asteroids millions of miles away cause an ice age on Earth, some 460 million years ago? A new study of earthly rocks and sediments - plus micrometeorites that fell in Antarctica - suggest it's possible.

Why is the internet so chock-full of stories about asteroids on a collision course with Earth? At this rate, we should have been obliterated many times over already. Here comes the newest scare story: asteroid 2007 FT3. No, it won't hit us, either.

Loki, the largest volcano on Jupiter's moon Io, erupts on a more or less regular schedule. Planetary scientists are predicting an eruption this month. Here's what we know.

Cassini data suggested that Saturn's rings were only 10 to 100 million years old. A new study suggests that a "ring rain" onto Saturn makes the rings look younger than they really are, and that in fact Saturn's rings date back billions of years.

What is ULX-4 - a mystery green blob of X-ray light that appeared in the Fireworks Galaxy - and then soon disappeared again? A black hole or neutron star are 2 possibilities.