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Visible Light Spectrum from Alien Planet Measured for 1st Time (Video)

• WATCH LIVE @ 8 pm ET: See the Lyrid Meteor Shower in Slooh Webcast
• Lyrid Meteor Shower Peaks Tonight: How to See It
• Visible Light Spectrum from Alien Planet Measured for 1st Time (Video)
• 'PLANETARY' Documentary Gives Astronaut's-Eye View of Fragile Earth
• 'PLANETARY' Exclusive Clip: Astronaut Ron Garan Describes Our Home Planet
• Writing Hubble Telescope History: Q&A with Author Robert Zimmerman
• Image of the Day
• 'The Universe in a Mirror' (US, 2008): Book Excerpt
• Buran: The Soviet Space Shuttle
• How the Hubble Space Telescope Changed Our View of the Cosmos
• 'Astronaut Wives Club' TV Series to Launch in June on ABC
• Astronaut Samantha Cristoforetti Wears 'Star Trek' Uniform in Space (Photo)
• Mercury Space Capsule Returns to Kansas After Overseas Art Exhibition
• Brilliant Venus and Moon Shine Together Tonight: How to See It 
• Going Back to the Moon: Q&A with Planetary Scientist Paul Spudis
• What 'Black Holes and Time Warps' Means to Me
• Neil Tyson's 'Star Talk' Turns TV Topsy-Turvy | Exclusive Video
• Hubble Telescope at 25: The Trials and Triumphs of a Space Icon
• NASA Snaps New Views of Dwarf Planet Ceres' Mystery Spots (Video)
• Incredible Technology: NASA's Wild Airship Idea for Cloud Cities on Venus
• Project HAVOC: NASA Concept Could Explore Venus with Airships (Gallery)

TECH / See Latest »

Tales Of Hubble Repair Tools, Told By Photographer | Video

• NASA Space Apps Hackathon Encourages Women In Data 
• NASA's Website Just Got a New Look
• Launch, Land, Repeat: Reusable Rocket Technology Taking Flight

SPACEFLIGHT / See Latest »

Obama’s Goals For NASA - How’s Progress? | Video

• How to Celebrate Earth Day 2015 with NASA
• Strapping Space Sales: Astronauts' Moon Backpack Straps Up for Auction
• NACA Sign, Symbol of NASA's Origins, Joins Smithsonian Museum 

SCIENCE & ASTRONOMY / See Latest »

First Direct Light From An Exoplanet Changes Game | Video

• Hubble Space Telescope - Kill Or Save It? | Video
• Chelyabinsk Meteor-Sized Asteroid To Give Earth Close Shave | Orbit Animation
• Ceres Bright Spots' Origins Still Unknown - New Imagery Video

SEARCH FOR LIFE / See Latest »

Beyond Hubble: Will Future Space Telescope Seek Alien Life by 2030?

• On Mars, Liquid Water Appears at Night, Study Suggests
• Signs of Alien Life Will Be Found by 2025, NASA's Chief Scientist Predicts
• Guiding Our Search for Life on Other Earths

SKYWATCHING / See Latest »

Planet Mercury Shines Near Mars Tonight: When and Where to Look 

• Lyrid Meteor 'Fireworks' To End Earth Day | Video
• Look Up! Celebrate International Dark-Sky Week This Weekend
• Virgo Rises: Spot Second-Largest Constellation This Week 

ENTERTAINMENT / See Latest »

Huge 'Cloud City' Diorama Built At Star Wars Celebration | Time-Lapse Video

• 'Invisible Universe Revealed': Hubble Telescope Doc Debuts on PBS Today 
• 'StarTalk,' NatGeo Channel's 1st Late-Night Science Talk Show, Debuts Tonight
• Space Junk Menace Becomes a Gamer's Dilemma in 'Habitat'

IMAGE ALBUMS / view all »

• 
  The Hubble Space Telescope: A 25th Anniversary Photo Celebration 
• 
  Best Space Photos of the Week — April 19, 2015
• 
  Stunning Night-Sky Images from the American Desert (Photos)

REFERENCE ARTICLES / view all »

• 
  What is a Wormhole?
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  Einstein's Theory of General Relativity
• 
  Black Holes: Facts, Theory & Definition

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