Andrea Thompson

The hottest known planet in our galaxy is being stretched into the shape of a football and rapidly consumed by its parent star, new observations from the Hubble Space Telescope show.

Today marks the day that Spirit takes over the record of longest-running Mars mission if she wakes up from her winter hibernation.

This week, the Mars rover Spirit could break Viking 1's record for longest-running Mars surface mission.

Since the dawn of the space age, satellites, spacecraft and astronauts have changed mankind's view of our home planet, showing us the beauty and fragility of the Earth in images taken from space.

First photos from NASA's Solar Dynamics Observatory were released today, revealing new details of the sun.

New age estimate for oldest known Mars meteorite suggests long-lived volcanic activity.

A look at the spacecraft that met their end on the red planet.

Third and final listening attempts for Phoenix Mars Lander yield no sign of life.

A new method that separates starlight from planet light could help find smaller, closer-orbiting extrasolar planets.

The acidic waters that once bathed Meridiani Planum area of Mars may have been created by interaction with atmosphere.

New observations show rocky, dusty material circling two young stars at a distance similar to that between the Earth and sun.

White dwarf stars show contamination from rocky material suggesting rocky planets common in galaxy.

Volcano hotspots on Venus may have been recently active.

Cassini spacecraft will help scientists determine the age and mass of Saturn's rings.

NASA begins third and final campaign to listen for signs of life from Phoenix Mars lander.

Solution to 'young' sun paradox proposed through thinner clouds on early Earth.

Cloud feature over Neptune's south pole is seen splitting in two, suggesting it could be similar to Saturn's polar vortex.

Recently discovered plant CoRoT-9b has low enough temperatures to have liquid water.

NASA's Mars rover Spirit still has power, but temperatures are getting cold.

Six years of Cassini observations shed light on Saturn's rings, magnetic shield.

CoRoT mission finds gas giant exoplanet that most closely resembles Jupiter, Saturn.

Early Earth's magnetic field weaker than today, likely led to water loss from atmosphere, bigger auroras.

Discovery of old star in small galaxy backs up theory that Milky Way formed by cannibalizing dwarf galaxies.

Fermi telescope finds active galactic nuclei don't create most of gamma ray background.

Particle from comet suggests when and where some comet material formed.