We will know the extraterrestrials by their trash.
Flights could begin as early as 2016.
The U.S. Air Force Thunderbirds perform the "Five-Card Loop" over California in May, 2014.
New evidence that the planet was once cold, wet—and perhaps habitable.
Hard advice in a new report on the future of human spaceflight.
Four clusters of galaxies produce spectacular collisions in this combined image from the Very Large Array in New Mexico, the Chandra X-Ray Observatory, and the Hubble Space Telescope. The region is more than five billion light-years away, with the x-rays shown in blue and radio emissions shown in red.
A new explanation of the Moon’s early history is more confusing than illuminating.
If you wanted to spice up your lodge meeting at the turn of the 20th Century, the DeMoulin brothers had some suggestions.
A P-51 Mustang flies over Inglewood, California in this 1942 photograph.
Mississippi Army National Guard soldiers practice fast rope insertion in April 2014.
If engineers can master the technique, UAVs might be able to charge themselves on power lines.
This false color image from NASA's Terra satellite of the massive flooding in Serbia over a few weeks in May 2014 help with mapping and monitoring the situation.
An online archive highlights the Apollo astronaut’s little-known life as an academic.
New Horizons may find another water world when it reaches its destination.
An F-100A Super Sabre takes off in 1957 on a NACA test flight.
A CV-22 Osprey was part of the U.S. Air Force exercises in Florida last May.
This hastily constructed plant produced 6,608 bombers during World War II
Washington, D.C. space fans will get a treat on June 11, 2014, when the <a href="http://www.airspacemag.com/daily-planet/ii-how-21st-century-spaceship-should-land-180951621/">brand new version of Space X's Dragon capsule</a> -- this one built for a crew -- goes on display for one day only at the <a href="http://newseum.org">Newseum</a>.
An inside look at the choices that went into creating a Lindbergh display
Meet Kapteyn b, the oldest known exoplanet in the habitable zone.
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