Book Review: Atlas: The Ultimate Weapon

20 years ago

Warfare has been the driving force for many technological advances. The Atlas booster, one of rocketry's stars, arose from such…

Carbon/Oxygen Stars Could Explode as Gamma Ray Bursts

20 years ago

An international team of astronomers have found evidence that certain kinds of gamma-ray bursts, which are associated with Type 1C…

Shuttle Getting an Upgraded Fuel Tank

20 years ago

The space shuttle Discovery has returned to NASA's massive Vehicle Assembly Building to get a new, modified external fuel tank…

Dark Spots on the Moon Show a Turbulent Solar System

20 years ago

Only when the Apollo astronauts finally stepped out onto the surface of the Moon was the mystery of its dark…

Mysterious Spot on Titan Puzzles Astronomers

20 years ago

Cassini has turned up an unusual "hotspot" on Titan that astronomers don't have an explanation for... yet. The 483-km (300-mile)…

Podcast: Amateurs Help Find a Planet

20 years ago

Professional astronomers have got some powerful equipment at their disposal: Hubble, Keck, and Spitzer, just to name a few. But…

Audio: Amateurs Help Find a Planet

20 years ago

Professional astronomers have got some powerful equipment at their disposal: Hubble, Keck, and Spitzer, just to name a few. But…

Saturn Reflects X-Rays from the Sun

20 years ago

Based on new observations from the Chandra X-Ray Observatory, Saturn could act as a mirror to help determine when massive…

Opportunity Still Working Itself Free from the Sand

20 years ago

NASA's Opportunity rover is still working its way free from the sand trap it ran into a few weeks ago.…

A Bend in the Rings

20 years ago

This photograph of Saturn taken by Cassini shows its rings bending down just before they pass behind the planet. This…