Princeton University physicist Paul Steinhardt reveals the different shades of meaning the word "impossible" has for him.

November 7, 1492 - A meteorite crashes through Earth’s atmosphere, creating a sonic boom and illuminating the sky above the Austrian capital. Known as the Donnerstein, or Thunderstone, the deafening sound of the fireball is heard over...

Astrobiologist Richard Hoover really goes to extremes to find living things that thrive where life would seem to be impossible - from the glaciers of the Alaskan Arctic to the ice sheets of Antarctica. These so-called, "extremophiles"...

In January, 2014, thousands of gallons of chemicals, including crude 4-methylcyclohexanemethanol, or MCHM, spilled into West Virginia's Elk River, near Charleston. The spill ultimately contaminated the local water supply...

Psyche Mission Co-investigator Ben Weiss discusses the mission to a unique metal asteroid orbiting the Sun between Mars and Jupiter.

Space. It's the final frontier and one of the great unknowns for mankind. But you probably don't even know what you don't know about it. So sit back and find out why your 4th grade science teacher was probably completely off.

The early Solar System’s cosmic dust may have given rise to primitive Earth over just five million years. <br/>

How do we know if a rock came from the Moon, Mars, or an asteroid? Planetary scientist Neyda Abreu has looked inside all kinds of meteorites to understand where they came from and what’s inside them. She also traveled to Antarctica to...

November 7, 1492 - A meteorite crashes through Earth’s atmosphere, creating a sonic boom and illuminating the sky above the Austrian capital. Known as the Donnerstein, or Thunderstone, the deafening sound of the fireball is heard over...

The early solar system was a chaotic place with many large-scale collisions.

When NASA’s OSIRIS-REx spacecraft arrived at asteroid Bennu in December 2018, its close-up images confirmed what mission planners had predicted nearly two decades before: Bennu is made of loose material weakly...

Asteroids are the leftover building blocks of the solar system, remnants from the dawn of planet formation that may have delivered organics and water to early Earth, and which could hold clues to the origins...

November 7, 1492 - A meteorite crashes through Earth’s atmosphere, creating a sonic boom and illuminating the sky above the Austrian capital. Known as the Donnerstein, or Thunderstone, the deafening sound of the fireball is heard over...

Excerpts from 14 short films about NASA's Goddard Space Flight Center.<b<br/>r/>

Residents of Chiloe Island saw a mysterious fireball blazing down the sky before fragmenting on September 25. <br/>

Scientists have discovered that water is being released from the Moon during meteor showers. When a speck of comet debris strikes the Moon it vaporizes on impact, creating a shock wave in the lunar soil. For a sufficiently...

Scientists have discovered that water is being released from the Moon during meteor showers. When a speck of comet debris strikes the Moon it vaporizes on impact, creating a shock wave in the lunar soil. For a sufficiently...

Earth and Mars were likely generated by regular collisions between giant Moon-to-Mars-size rocks, rather than tiny pebbles clumping together.

Jamie Cook, an astrobiologist at the Goddard Space Flight Center, talks about her work in the lab and some of her most exciting discoveries.<b<b<br/>r/>r/>

With support from the National Science Foundation, Astrobiologist Richard Hoover really goes to extremes to find living things that thrive where life would seem to be impossible--from the glaciers of the Alaskan Arctic to the ice sheets...

Only Shooting Stars

An artificial intelligence program has used satellite data to project that more than 300,000 meteorites may lie undiscovered on the surface of Antarctica.

NASA-funded researchers have evidence that some building blocks of DNA, the molecule that carries the genetic instructions for life, found in meteorites were likely created in space. The research gives support to the theory that a...

Scientists have known that the Moon has a tail, like a comet, since the late 1990s, but now they know where it comes from — and why it’s brighter sometimes than others. <br/>