Exoplanets

Life on Earth Needed Iron. Will it be the Same on Other Worlds?

A lot has to go right for a planet to support life. Some of the circumstances that allow life to…

1 month ago

Even Really Massive Stars Seem to Have Planets

Can planets form around massive, hot stars? Some astronomers think they can't. According to the evidence, planets around stars exceeding…

1 month ago

TESS Finds a New Mars-Sized Planet (With the Density of Mercury)

Some planets orbit their stars so closely that they have extremely high surface temperatures and extremely rapid orbits. Most of…

1 month ago

A Machine-Learning Algorithm Just Found 301 Additional Planets in Kepler Data

Using a new type of deep-learning algorithm, a team of NASA scientists have detected 301 more exoplanets in the Kepler…

2 months ago

Astronomers Find a Planet That Orbits its Star in Just 16 HOURS!

Mercury is the speed champion in our Solar System. It orbits the Sun every 88 days, and its average speed…

2 months ago

Eggshell Planets Have a Thin Brittle Crust and No Mountains or Tectonics

Planets without plate tectonics are unlikely to be habitable. But currently, we've never seen the surface of an exoplanet to…

2 months ago

Astronomers see a Moon-Forming Disk Around a Super-Jupiter

Recently, astronomers have been finding protoplanetary discs around certain stars.  Their discovery has helped kick off a new work in…

3 months ago

Rare Planet Found Orbiting Three Stars

It's a hat-trick! Astronomers may have spotted the first ever known planet orbiting not one, not two, but three stars.…

3 months ago

An Exoplanet Reaches 2400 C in One Hemisphere. Does it Really Rain Iron?

WASP-76b is an ultra-hot Jupiter about 640 light-years away from Earth in the constellation Pisces. A few years ago it…

3 months ago