Astronomy & Space news

Forces of martian nature

The surface of Mars is pocked and scarred with giant impact craters and rocky ridges, as shown in this new image from ESA's Mars Express that borders the giant Hellas basin in the planet's southern hemisphere.The ...

Jul 11, 2014 4.9 / 5 (11) 1

Sun-like stars reveal their ages

(Phys.org) —Defining what makes a star "Sun-like" is as difficult as defining what makes a planet "Earth-like." A solar twin should have a temperature, mass, and spectral type similar to our Sun. We also ...

Jul 10, 2014 5 / 5 (6) 4