Arnie said, "Get your a* to Mars", but is it really a good idea? We asked the experts about our Martian future.

Explore the concept of 'snowball earth' and recent findings on climate variability during this ancient icy period.

Science is a subject built on doing. Students learn chemistry through titrations, biology through dissections, physics ...

Each year, the world's leading climate scientists evaluate the most critical evidence on how our planet is changing. Their assessments draw heavily on data from Earth-observing satellites—and the ...

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

NASA's STRIVE and EDGE Earth observation satellites will deliver advanced climate data and ecosystem mapping through space ...

Researchers have uncovered more than a thousand previously unknown tectonic ridges across the Moon’s dark plains, showing the ...

Ever wondered why some eclipses turn the Moon red while others just make it look bitten? Here is the science behind total and ...

A solar storm is a catchall term that describes any disturbance in the sun that involves the violent ejection of solar material into space. This can come in the form of coronal mass ejections, where ...

Life on Earth may have learned to breathe oxygen long before oxygen filled the skies. MIT researchers traced a key ...

Scientists warn that radiation and microgravity pose a major threat to human reproduction in space. Understanding these ...

With an estimated 6 sextillion kilograms of the stuff—that’s 21 zeroes by the way—the Earth’s core is another example of why hydrogen is the most abundant element in the universe.