Circumstellar habitable zone

February 13, 2019

The Holy Grail of Astrobiology

In the past, the amount of information that astronomers have been able to discern about an exoplanet has been limited. The exoplanet transit method looks for […]
October 19, 2018

Red Dwarf Star’s Mighty ‘Hazflare’ Could Be Bad News for Alien Life

Another red dwarf has been caught firing off a superpowerful flare, further bolstering the notion that life might have a hard time taking root around these small, dim […]
October 4, 2018

Astronomers think they’ve found a moon the size of Neptune in a distant star system

Nearly eight thousand light-years away from Earth, there’s a star about the same size as our sun. Like our own solar system, that distant star is […]
September 21, 2018

Who’s Out There?— Us!

It’s a tough call–how do we balance our crying needs here on Earth for peace and enough water to drink with our need to enrich our human […]
May 17, 2018

Who’s Out There?—Anyone of Interest?

Two articles in Science News April 28 and May 12, 2018, focus on what we have learned about the 5000 possible exoplanets Kepler has found. Now we await […]
May 18, 2017

Who’s Out There?—Star Chips? (and required reading for students of alife and exobiology)

When I first heard the idea I was appalled. Spend millions of dollars to pepper the vicinity of Proxima Centauri‘s planet with light-beam-propelled Starchips? Even if […]
May 13, 2017

Mars May Have Been Born in the Asteroid Belt

Research suggests that gravitational interactions forced Mars out of the asteroid belt and toward the sun about 120 million years after the birth of the solar […]