Mars mission to send Blue and Gold satellites to red planet

The Mars ESCAPADE mission will study the red planet's magnetosphere using a pair of small satellites. ESCAPADE will launch no earlier than spring 2025.

We’re getting better at seeing asteroids that may hit Earth

Astronomers are getting better at spotting asteroids, such as the asteroid that hit Earth near the Philippines on September 5, 2024. Read more.

New Cloud Atlas of Mars for cloudspotting on the red planet

Want to do some cloudspotting on Mars? Researchers in Germany have created the new Cloud Atlas of Mars, with 20 years of images from the Mars Express orbiter.

Comet A3 is brightening. Will it be the comet of the year?

Comet A3 Tsuchinshan-ATLAS survived its rumored disintegration and may be the brightest comet of the year this September and October. Finder maps here.

Dark matter black holes could make Mars wobble

MIT researchers believe dark matter exists in the form of tiny black holes. Those black holes may cause Mars' orbit to wobble, making them detectable.

Scientists recreate exotic Martian ‘spiders’ for 1st time

NASA scientists say they have confirmed a theory about how Martian 'spiders' form in the southern polar regions: erupting bursts of carbon dioxide gas.

LIVE MONDAY: Space junk with Jonathan McDowell

Astrophysicist Jonathan McDowell will discuss humans' unexpected impacts on space LIVE with EarthSky at 12:15 p.m. (17:15 UTC) on Monday, September 16. Join us!

Black hole duo will merge in a distant galaxy

A black hole duo is headed for a collision. The active central black holes of 2 distant merging galaxies are only 300 light-years apart.

Why are Mars’ polar caps different from each other?

Mars' polar caps are generally similar, but they also differ in some some ways. A new study shows how the differing sublimation of CO2 ice plays a role.

Question mark galaxy? Gravity lens creates cosmic graffiti

An unusual occurrence of gravitational lensing created this view of a question mark galaxy. The discovery reveals details about early galactic evolution.