'Old Earths': The Search for Ancient and Habitable (But Dying) Exoplanets

Illustration depicting the life cycle of Sun-like stars. Billions of years from now, our own Sun will expand into a red giant star, scorching any life that exists. Image Credit: ESO/M. Kornmesser

Researchers at Cornell University are taking a new approach to the search for alien life: looking for habitable planets older than Earth, […]

Curiosity Discovers Biochemically Accessible Nitrogen, Key Ingredient Needed for Martian Life

Curiosity detected biochemically accessible nitrogen here at John Klein drill site! Curiosity accomplished historic first drilling into Martian rock at John Klein outcrop on Feb 8, 2013 (Sol 182), and discovered a habitable zone, shown in this context mosaic view of the Yellowknife Bay basin taken on Jan. 26 (Sol 169). The robotic arm […]

Curiosity Snaps Expansive Selfie, Sets Next Drill Campaign

This self-portrait of NASA’s Curiosity Mars rover shows the vehicle at the “Mojave” site, where its drill collected the mission’s second taste of Mount Sharp. The scene combines dozens of images taken during January 2015 by the MAHLI camera at the end of the rover’s robotic arm. Image Credit: NASA/JPL-Caltech/MSSS See drill site photomosaics […]

Kepler Discovers Three Super-Earth Exoplanets Orbiting Nearby Star

Cartoon illustration depicting how the three newly-found planets’ shadows (right side) can be seen as eclipses from Earth (left side) as they transit in front of their star. Image Credit: K. Teramura, UH IfA.

Last week was a good one for exoplanet enthusiasts, with yet more news relating to how other worlds are now […]

Kepler Confirms Over 1,000 Exoplanets, Finds More Potentially Habitable Worlds

Illustration of the eight newly verified exoplanets which are less than twice the size of Earth and orbit within their stars’ habitable zones. Image Credit: NASA/JPL

Even after problems threatened to end the Kepler space telescope’s mission for good last year, the planet-hunting observatory has continued to help astronomers discover thousands of exoplanets orbiting […]

Two New Exoplanet Findings Bring Us Closer to Discovering Other Earth-Like Worlds

Artist’s conception of a super-Earth ocean world, with another gas giant planet rising over the horizon. Image Credit: David A. Aguilar/CfA

When it comes to exoplanets, the most exciting for many people are, of course, the ones which may be the most Earth-like, since these are regarded as the most likely to possibly support some form […]

Tilted Aquaplanets Might Still be Habitable, Study Suggests

Artist’s conception of an ocean-covered aquaplanet. Image Credit: Christine Daniloff/MIT

With so many exoplanets now being discovered on a regular basis by astronomers, the focus has turned to what number of them might be habitable for some kind of life. For life as we know it at least, that depends on a number of […]

TESS Exoplanet-Hunting Space Telescope Ready for Development

Artist’s conception of the Transiting Exoplanet Survey Satellite (TESS). Image Credit: MIT

The search for exoplanets is about to enter an exciting new phase, as the Transiting Exoplanet Survey Satellite (TESS) mission has now been cleared for development by NASA. TESS will greatly expand the number of stars being observed for evidence of exoplanets […]

Curiosity ‘Lacks Science Focus’ as Cassini Gets ‘Excellent Rating’ Says Planetary Science Review Board

Panel urges more drilling less driving for NASA’s Curiosity Mars rover Curiosity accomplished historic first drilling into Martian rock at John Klein outcrop on Feb. 8, 2013, (Sol 182) and discovered a habitable zone, shown in this context mosaic view of the Yellowknife Bay basin taken on Jan. 26 (Sol 169). The robotic arm […]

From a Galaxy Far, Far Away: Astronomers Discover Ancient Super-Earths in Our Galactic Neighborhood

Artistic representation of the recently discovered, potentially habitable world Kapteyn b, with the globular cluster Omega Centauri in the background. It is believed that the Omega Centauri is the remaining core of a dwarf galaxy that merged with our own galaxy billions of years ago, bringing Kapteyn’s star along. Credit/Caption: PHL @ UPR Arecibo, […]