Imagine seeing 2 suns in your sky. Like the fictional planet Tatooine in Star Wars, some planets do orbit 2 stars. Kepler-164 is the largest yet discovered.
See the Mars rover Curiosity, nestled on Mars' surface? The sharp-eyed HiRISE camera aboard the Mars Reconnaissance Orbiter caught the view from space.
“That you could have vast liquid water ocean habitats so far from the sun on Pluto - and on other Kuiper belt objects as well - is absolutely incredible.”
Great land plates shifted and came together - 55 million years ago - to create the Tibetan Plateau, the highest and largest plateau in the world today.
Global warming will cause more people to be exposed to the mosquito that carries Zika virus, says a new study. Why this mosquito is such a good virus-spreader.
Lots of people caught the sun setting in the west on the evening of this week's solstice. Fiona M. Donnelly in eastern Ontario happened to turn and look east.
Planet K2-33b resides in a solar system in the process of being born. In human terms, if Earth were 45 years old, this planet would be just a few weeks old.
On June 20, 2016, the moon turns full at 11:02 UTC. The solstice arrives some 11.5 hours later, at 22:34 UTC. Solstice moon photos here from the EarthSky community.