American Association for the Advancement of Science (AAAS)5d
Where did Earth’s water come from? AAAS Fellow Karen Meech investigates
The University of Hawaii astronomer’s interest in habitable worlds began at a geothermal field in Iceland, where she and a ...
National Geographic news4y
Planet Earth, explained
With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only one known for sure to have liquid water on its surface. Earth is also unique in terms of ...
Business Insider6y
Earth's atmosphere is so big the moon flies through it
The boundaries between planet Earth, the moon, and deep space just got fuzzier. According to a new analysis of data recorded by a spacecraft more than 20 years ago, the outer fringes of our cozy ...
Smithsonian Magazine11y
How Did Water Come to Earth?
Where does water, a giver and taker of life on planet Earth, come from? When I was in junior high school, my science teacher taught us about the water cycle—evaporation from oceans and lakes ...
Hosted on MSN6mon
New planet discovered orbiting a star close to Earth
The closest stellar system to Earth is the three star group ... that is neither too hot nor too cold for water to exist on an orbiting planet without boiling away or freezing.