Rare 'cosmic telescope' amplifies light from dawn of time

Quaking aspen leaves inspire an energy harvester fit for Mars

NASA cancels first all-female spacewalk due to shortage of spacesuits in correct size

Strange star caught fleeing the Milky Way at breakneck speed

NASA captures massive meteor explosion over Bering Sea that everyone missed

Gorgeous supermoon — the last of 2019 — ushers in spring

We may know where the bizarre, cigar-shaped interstellar object 'Oumuamua came from

SpaceX test will be the first step toward putting humans on Mars

Deep-space photos reveal thousands of supermassive black holes

Meet 'Steve,' the rare celestial phenomenon lighting up the skies over Canada

Opportunity's last photo is a bittersweet travel log of Mars

Why the first mission team to Mars should include only women