Tuesday, May 23, 2017


Astronomers have determined the outermost Earth-sized world in the TRAPPIST1 system is probably too cold to support life.

That may not have always been the case, however.  TRAPPIST-1 was likely much brighter in the past.

Monday, May 22, 2017


KELT-11b  is a very strange world.  It's a gas giant, larger than Jupiter, but with the density of styrofoam.  That density is partly due to an atmosphere that's 1716 miles deep.

It's also a world not long for the universe.  Within a hundred million years, ir will be absorbed by its red giant parent star.

Saturday, May 20, 2017

Boyajian's star

Boyajian's star is acting up again, dimming irregularly and inexplicably.

A megastructure orbiting the star still cannot be ruled out.

Friday, May 19, 2017

Titanic Study

A new study says the surface of Saturn's huge moon Titan more closely resembles Mars than Earth.

It also concludes there's been no tectonic activity on Titan for a very long time.

Thursday, May 18, 2017

To The Moon?

The head of a Russian space company says he doubts SpaceX can fly people around the Moon next year.

He says the company's Dragon capsule is inadequate to the task.

Wednesday, May 17, 2017


A NASA probe has detected glints of sunlight bouncing off ice crystals in Earth's atmosphere from millions of miles away.

Similar observations could help characterize the atmosphere of exoplanets.

Tuesday, May 16, 2017

Migrating Mars

A new study suggests Mars may have formed in the asteroid belt.

The theory is that Mars moved to its current orbit through gravitational interactions with asteroids.