Mars Rover May Be Contaminated with Earth Microbes
If microbial stowaways did hitch a ride to Mars, how will Curiosity’s mission be affected?
Gazing Up at a Double Sun
Astronomers have found multiple planets orbiting a double star system.
The World Remembers Neil Armstrong
A goodbye to Neil Armstrong: Pilot, pioneer, and the first person to walk on the Moon.
Curiosity Rover Zaps a Rock, Starts to Roll
The rover is on its way to Glenelg, an area where scientists hope to drill into bedrock.
Massive “Phoenix Cluster” Supersizes Star Creation
Astronomers have found a massive galaxy cluster that’s making stars at a record pace.
Amidst Rocky Peaks, Physicists Ponder the Universe
The Aspen Center for Physics, a mountain retreat for theoretical physicists, turns 50 this year.
With ‘Terror’ in the Past, Mars Scientists Plan for Exploration Ahead
Mars Science Laboratory project scientist John Grotzinger describes plans for the Curiosity rover, now in Gale Crater on Mars.
Martian Lab Made in Manhattan
What’s it like to build tools for Curiosity? Intense.
Planning for ‘Curiosity’ on Mars
NASA scientist John Grunsfeld gives a preview of the Mars Curiosity mission, from the landing’s ‘seven minutes of terror’ to the plans for the exploration ahead.
Ask an Astrophysicist
Nobel Prize-winning astrophysicist Adam Riess takes your questions on dark energy and the cosmos.