Exoplanets Extraterrestrial life News

Planetary Habitability Index: Conjuring life on other planets

From “Planets’ life-hosting potential ranked” (CBC News, Nov 24, 2011), we learn, Plugging in parameters such as a planet’s mass, radius, and average temperature generates a series of measures in the Earth Similarity Index, which “provides a quick screening tool with which to detect exoplanets most similar to Earth,” said Dirk Schulze-Makuch, an astrobiologist at […]

Exoplanets Intelligent Design

Darkest known exoplanet: Exoplanets better as collectibles than homes for life?

From “Darkest Known Exoplanet: Alien World Is Blacker Than Coal” (ScienceDaily (Aug. 12, 2011) we learn: Astronomers have discovered the darkest known exoplanet — a distant, Jupiter-sized gas giant known as TrES-2b. Their measurements show that TrES-2b reflects less than one percent of the sunlight falling on it, making it blacker than coal or any […]


Another unusual, life-free exoplanet

“’Exotic’ planet is densest of its kind: 55 Cancri e as dense as lead and has year less than 18 hours long,” we learn from Emily Chung, CBC News (Apr 29, 2011): 55 Cancri e is a super-Earth located in a very tight, short orbit around a yellow dwarf star similar to Corot-7b, above. Corot 7b […]