A Day Of Remembrance For Lives Lost In the Pursuit Of Space

Today is Day of Remembrance for human spaceflight, a day selected for its proximity to horrific moments when we lost astronauts during our quest to explore our solar system. On January 28th, NASA takes the day to reflect on the lives lost during their missions when things went catastrophically, unexpectedly wrong. » 1/28/15 2:00pm Yesterday 2:00pm

An Inflatable Planetarium Where You Can Climb Into the Night Sky 

If you were one of the millions of people driving over London's perpetually congested A13 highway in late November, you probably wouldn't have noticed it: Below the underpass, an eerily glowing orb surrounded by crowds of people who seemed to be crawling in and out of it. » 1/28/15 4:59pm Yesterday 4:59pm

This Is The Greatest View Of Dwarf Planet Ceres We Have Ever Seen

The Dawn spacecraft has done it: it is now taking the highest-resolution images of the dwarf planet Ceres that have ever been seen. Not only is this new image better than the historic Hubble Space Telescope image, but every new release will be better than the one before until it arrives in orbit this March. » 1/28/15 9:15am Yesterday 9:15am

Here's Why Small Black Holes Are More Dangerous Than Big Ones

If you were going to travel close to a black hole in order to study it, which type should you choose? Most people would probably pick a smaller black hole, because it seems easier to avoid. But that's a fatal mistake. Small black holes can be far more dangerous than big ones, due to a terrifying process called… » 1/27/15 10:40pm Tuesday 10:40pm

This Glorious Gallery Highlights A Myriad Optical Delights

The International Year of Light continues with a beautiful gallery celebrating all aspects of light: multispectral astronomical, technological innovations, bioluminescence, eclipses, and even noctilucent clouds. I'll say this for it: this is the most visually interesting and diverse "Year of..." celebration! » 1/27/15 6:00pm Tuesday 6:00pm

Freakishly Old System Of Planets Hint At Ancient Alien Civilizations

Kepler scientists have discovered the oldest known system of rocky, Earth-sized planets in the Milky Way. This suggests that terrestrial planets have appeared throughout most of the Universe's 13.8 billion year history — a potential indication of just how ancient some extraterrestrial civilizations could be. » 1/27/15 12:40pm Tuesday 12:40pm

This “Super Saturn” Has An Enormous Ring System And Maybe Even Exomoons

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Astronomers watching the repeated and drawn-out dimming of a relatively nearby Sun-like star have interpreted their observations to indicate an eclipse by a gigantic exoplanet's complex ring system, similar to Saturn's except much, much bigger. » 1/27/15 12:39pm Tuesday 12:39pm