MESSENGER Lifts Off for Mercury

20 years ago

NASA's MESSENGER spacecraft lifted off from Florida's Cape Canaveral on Tuesday, to begin its mission to become the first spacecraft…

Lagoon Nebula By Hubble

20 years ago

This image, taken by the Hubble Space Telescope, shows the strange twisted cloud structures at the heart of the Lagoon…

New Perspective on Melas Chasma

20 years ago

This is what it would look like if you were flying over a region of Mars' Valles Marineris at an…

Icy Tethys

20 years ago

Here's an image of Saturn's moon Tethys, taken by Cassini on July 13, when the spacecraft was 4.8 million km…

Search for Origins Programs Shortlisted

20 years ago

NASA has picked 9 ideas out of 26 proposals for further study as part of its Astronomical Search for Origins…

Public Invited to Help Catalog Mars

20 years ago

NASA scientists are inviting the public to help them inspect images of Mars and find important geologic features hidden in…

Titan’s Purple Haze

20 years ago

This image of Titan, Saturn's largest moon, was taken on July 3, one day after NASA's Cassini spacecraft made its…

Plasma Jets on the Sun Explained

20 years ago

Scientists from Lockheed Martin and the University of Sheffield believe they've solved the mystery of supersonic jets that dart across…

Swift Moves to Florida to Prepare for Launch

20 years ago

NASA's Swift satellite is due to arrive at Florida's Cape Canaveral today, to prepare for its launch in October. Named…

Quintuplet Cluster Imaged by Chandra

20 years ago

The Chandra X-Ray Observatory has taken this image of a mysterious group of stars called the Quintuplet Cluster. This dense…