Kepler Observes White Dwarf Star Disintegrating Its Planet(s)

An artist’s concept of a minor planet being disintegrated by a white dwarf star. New observations by NASA’s Kepler space telescope have indicated that this indeed takes place around WD 1145+017, a white dwarf located 570 light-years away. Image Credit: CfA/Mark A. Garlick

One of the wonderful things of living in a galaxy […]

Two Earth-Sized Exoplanets May Exist in Closest Star System, Hubble Observations Reveal

Artist’s conception of the Alpha Centauri binary star system and the exoplanet Alpha Centauri Bb. Our own Sun is also shown in the distance. Image Credit: ESO/L. Calçada/N. Risinger

The closest star system to our own Sun may have two Earth-sized exoplanets orbiting it, a new study has shown based on observations by […]

Astronomers Discover Ancient Terrestrial Exoplanets Around Neighboring Star

Artist’s concept of the recently discovered, tightly packed, and ancient exoplanetary system named Kepler-444. Astroseismic studies of the star’s oscillations, allowed astronomers to determine that it is the oldest planetary system discovered to date, with an age of approximately 11 billion years. Image Credit: Tiago Campante/Peter Devine/University of Birmingham

 

“Nearly a hundred […]

Gemini Planet Imager Concludes Year-Long Commissioning Phase, Begins Regular Science Observations With Impressive First Results

The circumstellar disk around the young star HR 4796A, as imaged by the Gemini Planet Imager, which is mounted on the 8.2-m Gemini South telescope in Chile. These images reveal a complex pattern of variations in brightness and polarization around the HR 4796A disk. The western side (tilted closer to the Earth) appears […]