Earth

Exotic Objects, Solar System

Astronomers find the closest (known) black hole to Earth

Solar System, Telescopes and Equipment

Earth’s best telescopes have closed, but the hunt for dangerous asteroids continues

Solar System

How bad is light pollution in your community? You can help find out.

Exoplanets, Planets, Solar System

Unlike Earth, Mars might not have had a global ocean of magma

Alien Life, Solar System

Ancient Earth may have been a “water world” with no dry land

Solar System

Hackers could shut down satellites — or turn them into weapons

Solar System

Two defunct satellites now have a 5% chance of colliding tonight

Solar System

Meteorite impact 2 billion years ago may have ended an ice age

Solar System

Crater found from asteroid that covered 10% of Earth’s surface in debris

Solar System

Earth may have recently destroyed one of its own minimoons

Solar System, The Moon

What if the Moon disappeared tomorrow?

Solar System

Did colliding space rocks change the climate for ancient humans?