You are here

Extraterrestrial Life


Libra, the Scales

Libra, the Scales October 4, 2011

An artist's concept of a giant planet orbiting a star other than the Sun.

Signs of Life May 21, 2010

Radio Programs

Radio Power Sailing on a “breeze” of radio waves May 24, 2017

Rio Scale Rating the odds of finding ET April 14, 2017

Looking for Life Looking for life in a cold ocean March 28, 2017

Habitable or Not? Different outcomes for a nearby planet March 2, 2017

Hydrothermal Vents A starting point in the search for life February 17, 2017

Calling the Neighbors Placing a call to the neighbors November 10, 2016

Searching for Neighbors III The mystery of Tabby’s Star November 9, 2016

16 Cygni A pair of old stellar neighbors November 6, 2016

Exoplanets VI Extinct life and non-civilizations September 17, 2016

Exoplanets V Looking for signs of life September 16, 2016

Exoplanets IV Looking for distant moons September 15, 2016

Exoplanets III Hunting for life in all the right places September 14, 2016

Moon and Saturn A vigorous debate about Selenites June 18, 2016

Building a Civilization Hopping from star to star April 6, 2016

M13 Sending a long-distance message April 5, 2016

Moon and Spica Living under brilliant suns March 24, 2016

Starshade Zeroing in on habitable planets March 18, 2016

Tau Ceti De-populating a popular star system October 13, 2015

Methane Powering the search for life June 21, 2015

Living in Circles The intelligent choice for planetary systems June 9, 2015

False Alarm A hint of an interstellar radio station May 26, 2015

Saturn at Opposition II Possible habitats on distant moons May 18, 2015

Moon and Jupiter Big geysers on big moons May 2, 2014

Time Bombs Time bombs in the evening sky April 22, 2014

Soothing Moon Stirring up some epsom salts May 25, 2013

Lots of Planets Strength of discovery in numbers March 8, 2013

Sweet Discovery A “sweet” discovery at a distant star November 13, 2012

Molecule Factory Whipping up some complex molecules November 12, 2012

White-Dwarf Planets Close planets around dead stars October 15, 2012

Altairian Planets A star that gets a lot of attention July 11, 2012

Looking for ET Looking for signs of alien visitors April 18, 2012

Comfy Planets Looking for comfy homes for life March 3, 2012

Featured Images

The faint star Trappist-1 and three of its planets

Cool Star, Warm Planets? September 14, 2016

WISE view of the Vela Nebula in Cygnus

Glowing Civilizations? April 1, 2014

Cassini view of a crescent Titan

Enigmatic Moon November 19, 2012

Artist's concept of global ocean on Jupiter's moon Europa

Water World September 16, 2011

Earth is in the middle of the Sun's habitable zone

In the Zone January 18, 2011

Turning On, Tuning In April 12, 2010

(Almost) Just Like Home February 21, 2010