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The first day of spring is finally here — for about 90% of us. Here’s why equinoxes mark the changing of seasons.
The spring or vernal equinox happens at 5:58 p.m. ET on Wednesday, March 20, 2019. Here's how Earth and the sun work together to change our seasons.
SpaceX rocketed a small Israeli robot called Beresheet toward the moon on February 21. Ahead of a lunar-landing attempt, it took a selfie photo.
SpaceX launched a plush toy Earth on its new Crew Dragon spaceship. Now supplies of ‘buddy’ are dwindling across the planet.
Celestial Buddies, which makes a fuzzy Earth doll, said it was shocked to see its inventory sell out after SpaceX rocketed one of the toys into orbit.
The Grand Canyon is one of the 7 natural wonders of the world. Here are 13 things you might not know about it.
The Grand Canyon is one of the most well-known US national parks and one of the most visited attractions in the country.
Earth’s air supply may reach nearly 400,000 miles into space — so far that the moon constantly flies through it
Our planet's gases reach so far into space that they envelope the moon. The discovery could help astronomers refine deep-space observation data.
Tonight’s ‘super snow moon’ will be the biggest and one of the brightest full moons of 2019. Here’s why.
February's full moon, also called a "snow moon," will be the biggest of 2019. That's because it's a perigean moon, or "supermoon," close to Earth.
People are using the viral ’10-year challenge’ as a stark warning about what’s happening to our planet
The "10-year challenge" that really matters: how melting glaciers, rising seas, and warmer oceans have already changed our planet in the past decade.
The speed of light is torturously slow, and these 3 simple animations by a scientist at NASA prove it
A scientist at NASA animated how long it takes light to travel around Earth, to the moon, and to Mars. The movies show just how slow light can be.
Apollo astronaut Jim Lovell, who saw Earth rise over the moon 50 years ago, says ‘you go to heaven when you are born’
"God has really given us a stage on which we perform," said Apollo 8 and Apollo 13 astronaut Jim Lovell. "How that play turns out is up to us."
Apollo 8 astronauts Frank Borman, Jim Lovell, and William Anders photographed "Earthrise" on December 24, 1968. It made Earth look small and fragile.