NASA's TESS Mission Wraps Up First Year of Exoplanet Hunting

TESS has already discovered nearly 1,000 exoplanet candidates and 24 confirmed exoplanets so far, in its first year. Image Credit: Goddard Space Flight Center

NASA’s TESS mission (Transiting Exoplanet Survey Satellite) has now completed the first year of its search for exoplanets and has already racked up some great discoveries, it was announced on […]

Kepler Space Telescope Discovers First Evidence for Exocomets Transiting Their Stars

Artist’s conception of a “storm” of comets orbiting a nearby star. Image Credit: NASA/JPL-Caltech

Comets, those icy and rocky bodies with the spectacular long tails of gas and dust, are common in our Solar System, with several thousand having been discovered so far. But what about other solar systems? Thousands of exoplanets are […]

Kepler Mission Continues With Campaign 11 Observations After Short Delay

Graphic showing two full-frame images from Kepler. Modules 3 and 7 failed earlier during Campaign 10 and Module 7 failed later. Image Credit: NASA Ames/W. Stenzel

The Kepler K2 mission has now resumed after a delay of three days, NASA has reported. The Kepler Space Telescope is currently in Campaign 11, during which […]

New Worlds Galore: Kepler Space Telescope Confirms 1,284 More Exoplanets

Artist’s conception of the many different exoplanets that have been discovered by Kepler so far. Image Credit: NASA/W. Stenzel

For several years now the Kepler Space Telescope, as well as other telescopes, has been discovering an increasing number of exoplanets, with over 2,000 such confirmed worlds found so far (and nearly 5,000 candidates). […]

Mystery Deepens: New Study Shows Comets Don't Explain Odd Dimming of Kepler's 'Weird Star'

The mystery surrounding KIC 8462852 may not involve comets after all, but it is still an enigma for astronomers. Image Credit: NASA/JPL-Caltech

As has been reported previously on AmericaSpace, and elsewhere, there is something weird going on around a star which is a little over 1,400 light-years away. Astronomers are still baffled as […]

GJ 1132b: Nearest Earth-Sized Exoplanet Discovered So Far May Be a 'Venus Twin'

Artist’s conception of GJ 1132b, an Earth-sized exoplanet orbiting a nearby star. Conditions on this world, however, are probably more like Venus than Earth. Image Credit: Dana Berry

Astronomers have discovered another Earth-sized exoplanet that is the closest one to our own Solar System found so far, but it might not be a […]

New NASA Planetary Science Proposals Include Venus and 'Metallic Asteroid' Missions

Artist’s conception of the VERITAS spacecraft in orbit around Venus. Image Credit: NASA/JPL-Caltech

Looking ahead to future planetary missions, NASA has selected five new science investigations for refinement over the next year. Later, one or two of those missions will be chosen to actually be launched, perhaps as early as 2020. The selections […]

Testing Panspermia: Searching for 'Bubbles of Life' in the Galaxy

Does life spread through the galaxy like an infectious disease, with “bubbles” of inhabited planets? Image Credit: Harvard-Smithsonian CfA

We still don’t know if there is life elsewhere in the universe, but scientists are working on techniques to better understand how it may have originated anyway, in the event that such alien biology […]

Kepler Update: Earth's 'Bigger and Older Cousin' Discovered Orbiting Distant Star

Artist’s conception of Kepler-452b, the first near-Earth-sized exoplanet discovered orbiting in the habitable zone of a Sun-like star. Image Credit: NASA Ames/JPL-Caltech/T. Pyle

One of the primary goals in the search for exoplanets is to, hopefully, find an Earth analog or “Earth twin,” an alien world similar to our own. That search is […]

Kepler Planet Hunter and APL Experimenter Krimigis Honored by Smithsonian

Marine Gen. John “Jack” R. Dailey (front right), director of the National Air and Space Museum, presents the 2015 Current Achievement Trophy Award to William Borucki (front left) and NASA’s Kepler Mission Team. Photo Credit: NASM

The scientists and engineers searching for potentially habitable planets orbiting distant stars, as well as the exploration […]