Ever since President George W. Bush's decision to retire the space shuttles in the aftermath 2003's Columbia disaster, NASA's human spaceflight program has been adrift.
New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life...
The Planck satellite reveals the universe's first stars formed more than a hundred million years later than previously believed
NASA has to deal with the unexpected financial consequences of robotic missions that just keep going. Lee Billings reports
The much-hyped James Webb Space Telescope promises to revolutionize exoplanet science, but only if astronomers can agree on how to use it.
In 1990, NASA's Voyager 1 spacecraft briefly looked back from its journey out of the solar system, capturing a view of the faraway Earth. Carl Sagan called it the "pale blue dot." From more than 6 billion kilometers away, beyond the orbit of Pluto, it seemed remarkable that our planet was even visible...
New images from a NASA orbiter reveal Beagle 2’s final resting place. Lee Billings reports
NASA's planet-hunting Kepler spacecraft finds two worlds that have sizes and orbits similar to ours
The company hopes to send up a Falcon 9 rocket and then safely land the discarded first stage for reuse. Lee Billings reports
The agency’s proposed human trip to a space rock has a bumpy road ahead
From humanity’s first, flawed foray to the surface of a comet to the celebrated discovery of (and less celebrated skepticism about) primordial gravitational waves, 2014 has brought some historic successes and failures in space science and physics...
New results suggest evidence for extraterrestrial life could be near at hand
We almost certainly have nothing to fear from one of the largest and brightest stars in the sky
In the Enuma Elish, a Babylonian epic that recounts the creation of the world, the heavens and the Earth emerge from a primordial abyss of brackish water
New theories suggest the big bang was not the beginning, and that we may live in the past of a parallel universe
Jupiter's Great Red Spot is its particular crimson shade because of the interaction of ultraviolet light and specific chemical compounds in the gas giant's atmosphere. Lee Billings reports
In an earlier blog post about Christopher Nolan's latest blockbuster movie, Interstellar, I lauded the film for its ambition, its visuals and the strong performances of its cast...
The Philae lander settled atop the “head” of the rubber duck–shaped object despite trouble with systems designed to secure the probe to the comet
Christopher Nolan’s new film, Interstellar, is a near-future tale of astronauts departing a dying Earth to travel to Saturn, then through a wormhole to another galaxy, all in search of somewhere else humanity could call home...
America's keystone human spaceflight mission for the next decade may be over before it begins