Real-life views of places on Mars where a fictional stranded astronaut, Mark Watney - from the Hollywood movie The Martian - undergoes his many trials.
NASA has announced five investigations for further study in its latest competition for new, relatively small-scale, robotic missions into our solar system.
Astronomers have "weighed" only the nearest supermassive black holes. Now, with a gravity lens and Einstein ring, they've weighed one 12 billion light-years away.
India has reached for the stars with a successful launch of its first astronomy satellite. ASTROSAT carries India's version of the Hubble Space Telescope.