Asteroid rock on green starry background

How Asteroids Bombarded Earth and Built the Continents

Asteroid collisions aren't always bad.
Spacetime as represented by a grid with a body (presumably a black hole) bending it.

When Gravity Sucked, According to the Plutocrats

After Einstein’s general theory of relativity was proven during a 1919 solar eclipse, quantum and nuclear physics pushed it aside to hog the limelight.
This artist concept depicts "multiple-transiting planet systems," which are stars with more than one planet.

To Find a New World, Watch How a Planet Dances with Its Star

Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
The continent of Antarctica, circa 2006

Inventing Antarctica

We're only just getting to know "the Ice."
This composite image contains X-ray data from Chandra (green and blue) that show heated material in the center of a shell generated by a supernova explosion. Optical data from Hubble show the glowing pink rim, which is ambient gas being shocked by the blast wave from the supernova, as well as the surrounding star field. The Type Ia supernova that resulted in the creation of this remnant would have been visible from Earth some 400 years ago.

How Stars Die

Nothing in this Universe is eternal—not even the stars.
How Mars may have looked about four billion years ago

How Mars Lost Its Magnetic Field—and Then Its Oceans

Chemical changes inside Mars's core caused it to lose its magnetic field. This, in turn, caused it to lose its oceans. But how?
International Gemini Observatory/NOIRLab/NSF/AURA/B. O'Connor (UMD/GWU) & J. Rastinejad & W Fong (Northwestern Univ) Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), J. Miller, M. Zamani & D. de Martin (NSF’s NOIRLab)

Explaining GRB 221009A, the Greatest Cosmic Explosion Humanity Has Ever Seen

The brightest gamma-ray burst ever observed, GRB 221009A behaved in unexpected ways that might help us understand how they occur.
Aerial view of Barringer crater in Arizona

The Eight Best Hidden Impact Craters on Earth

Many impact craters on Earth have been erased thanks to wind, water, and plate tectonics. But scientists have clever ways to find them.
Deep Jet Streams in Jupiter's Atmosphere

Could You Stand on the Surface of Jupiter? Exploring the Enigmatic Outer Planets

The outer planets’ clouds hide the weirdness within.
Plate Tectonics Diagram

How Plate Tectonics Shook Life into Existence

The cycles of life all rely on the dynamism of the Earth’s crust.