Fragment of the NWA7397 meteorite found in the Sahara desert on 2012

Meteorites from Mars

Meteorites that come from Mars help scientists understand the red planet’s interior.
Eoraptor lunensis lived roughly 230 million years ago, at a time when dinosaurs were small and rare.

Growing Quickly Helped the Earliest Dinosaurs

Rapid growth also helped other ancient reptiles flourish in the aftermath of mass extinction.
MeerKAT telescopes

MeerKAT: The South African Radio Telescope That’s Transformed Our Understanding of the Cosmos

MeerKAT has emerged as a beacon of innovation and opportunity on the African continent.
Illustration of a time when the Earth was being formed, known as the Hadean Period.

Crucial Building Blocks of Life on Earth Can More Easily Form in Outer Space

A special group of molecules, known as peptides, can form more easily under the conditions of space than those found on Earth.
Artist's impression of ʻOumuamua

Why Interstellar Objects Like ʻOumuamua and Borisov May Hold Clues to Exoplanets

The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
A 1906 Postcard from the National Electric Light Association's convention held at the boardwalk in Atlantic City New Jersey

Generating Electricity…and Uncertainty

As the tobacco and electrical industries demonstrate, US corporations have a history of sowing doubt for profit.
An illustration of seven Earth-size planets orbiting the TRAPPIST-1 star

Why TRAPPIST-1 Is Our Favorite Alien Planetary System

The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.
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?
Credits: Frank Summers (STScI), Greg Bacon (STScI), Joseph DePasquale (STScI), Leah Hustak (STScI), Joseph Olmsted (STScI), Alyssa Pagan (STScI); Science by: Steve Finkelstein (UT Austin), Rebecca Larson (RIT), Micaela Bagley (UT Austin)

NASA’s Deepest 3D Fly-through of the Universe

From the present day all the way to less than 400 million years after the Big Bang, we're seeing how the Universe grew up like never before.