Is the universe really accelerating?

New research questions the claim that the universe is accelerating. But this new work isn't as strong as some claim.

Latest image of Ceres bright spots

Scientists are having fun contemplating the spots along with the rest of us. NASA wants you to vote on what you think the spots might be.

Will Mars glass reveal life signs?

NASA spacecraft discovered deposits of impact glass preserved in Martian craters, possibly preserving ancient signs of life.

Video: Fine dining in microgravity

An astronaut aboard the ISS prepares one of her favorite meals - quinoa salad with tomato, mackerel and leek cream in a warm tortilla. Here's how it's done in space.

Gorgeous video flies you around Ceres

One of the best videos created via spacecraft images ever! Created with Dawn spacecraft images, it takes you completely around the mysterious dwarf planet, Ceres.

Giant Magellan Telescope is a go

Construction phase begins for GMT, to be placed in Chile. At first light in 2021, it'll be the largest telescope in existence, with images 10 times sharper Hubble's.

Pluto’s moons tumble in chaotic dance

Instead of rotating neatly on their axes, Pluto’s small moons Nix and Hydra are in a chaotic tumble as they orbit Pluto and its large moon Charon.

Watch NASA flying saucer test today

How to watch online as the saucer-shaped Low Density Supersonic Decelerator, or LDSD, test is broadcast beginning at 7 a.m. HST, 1 p.m. EDT, 1700 UTC.

First images from Sunday’s last close sweep of Hyperion

The Cassini mission to Saturn - which has brought us so many breathtaking images - took a last close look at Saturn's moon Hyperion on Sunday.

Crashing comets may explain lunar swirls

Scientists see wispy swirls of bright soil on the moon. A computer simulation suggests the cause may be collisions by ancient comets.