Detecting alien worlds presents a significant challenge since they are small, faint, and close to their stars. The two most prolific techniques for finding exoplanets are radial velocity (looking for wobbling stars) and transits (looking for dimming stars).
Expedition 35 Commander Kevin Chris Hadfield and Flight Engineers Tom Marshburn and Roman Romanenko landed their Soyuz TMA-07M spacecraft in southern Kazakhstan at 10:31 p.m. EDT Monday.
Over the weekend, the stalwart crew of the International Space Station (ISS) worked overtime to fix a leaking cooling network outside the orbital outpost.
Gone are the days of being able to count the number of known planets on your fingers. Today, there are more than 800 confirmed exoplanets - planets that orbit stars beyond our sun - and more than 2,700 other candidates.
NASA's Hubble Space Telescope has found the building blocks for Earth-sized planets in an unlikely place - the atmospheres of a pair of burned-out stars called white dwarfs.
In February, a speeding asteroid slammed into our atmosphere and exploded high over Russia’s Ural region, injuring hundreds and causing millions of euros of damage. What should we do if we have a similar – or even bigger – strike in the future?
The roar of a 5,000 pound rocket engine has returned to the Johnson Space Center. The Morpheus team has completed the build-up of our “Bravo” vehicle, conducted numerous integrated tests, and has now stepped into our flight test program.
The European Space Agency's (ESA) Herschel space observatory has made detailed observations of surprisingly hot molecular gas that may be orbiting or falling towards the supermassive black hole lurking at the center of our Milky Way galaxy.
Completely surrounded by a massive 20-foot-high structure called the crew module static load test fixture, the Orion crew module is being put through a series of tests that simulate the massive loads the spacecraft would experience during its mission.
Our Milky Way galaxy is teeming with a wild variety of planets. In addition to our solar system's eight near-and-dear planets, there are more than 800 so-called exoplanets known to circle stars beyond our sun.
A roughly 3.5-mile high Martian mound that some scientists suspect preserves evidence of a massive lake might actually have formed as a result of the Red Planet's famously dusty atmosphere.
A NASA-led modeling study provides new evidence that global warming may increase the risk for extreme rainfall and drought.
As planets age they typically become darker and cooler. However, Saturn however is much brighter than expected for a planet of its age - a question that has puzzled scientists since the late sixties.
Thee delicate wisps of gas seen in the image beloww make up an object known as SNR B0519-69.0, or SNR 0519 for short.
NGC 6559 is a cloud of gas and dust located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius (The Archer).
In an effort to determine if conditions were ever right on Mars to sustain life, a team of scientists, including a Michigan State University professor, has examined a meteorite that formed on the red planet more than a billion years ago.
NASA's Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer (OSIRIS-REx) spacecraft will visit the asteroid now called Bennu, named after an important ancient Egyptian avian deity.
Astronomers at NASA have used the Chandra X-Ray Observatory to conduct a detailed study of an enormous cloud of hot gas enveloping two large, colliding galaxies.
Earth’s atmosphere is critically important to all of us. In addition to providing us with air to breathe, it protects us from temperature extremes, harmful space radiation, and vast numbers of incoming meteoroids.
The European Space Agency's Herschel (ESA) space observatory has exhausted its supply of liquid helium coolant, ending more than three years of pioneering observations of the cool Universe.