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This was a magical revelation for the Greeks and the Egyptians, who were able to see from the motions of the stars and the way the Sun moved. They saw the way the Sun’s shadow worked in different places. And…
Editor’s note: This story was updated March 11, 2025, to reflect a new target launch date and time. NASA’s latest space observatory is targeting a March 11 liftoff, and the agency’s PUNCH heliophysics mission is sharing a ride. Here’s what…
The next full moon is called the Worm Moon. Also, there will be a total lunar eclipse this full moon. The Moon will be full early Friday morning, March 14, at 2:55 a.m. EDT, but will appear full for about…
by Kat Troche of the Astronomical Society of the Pacific What Are Messier Objects? During the 18th century, astronomer and comet hunter Charles Messier wanted to distinguish the ‘faint fuzzies’ he observed from any potential new comets. As a result, Messier cataloged…
The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, and has most recently been popularized in the novel and television show “3 Body Problem.” There’s no problem, however, with what a team…
A Fast-Moving Planet and a Crimson Moon! Catch Mercury if you can, then stay up late for a total lunar eclipse, and learn the truth about the dark side of the Moon. Skywatching Highlights All Month – Planets Visibility: Daily…
NASA has selected eight participating scientists to join its Lucy mission to the Jupiter Trojan asteroids. These asteroids are remnants of our early solar system trapped on stable orbits associated with — but not close to — the planet Jupiter. NASA’s…
The small satellite mission will map the Moon to help scientists better understand where its water is, what form it’s in, how much is there, and how it changes over time. Launching no earlier than Wednesday, Feb. 26, NASA’s Lunar…
High above Earth’s poles, intense electrical currents called electrojets flow through the upper atmosphere when auroras glow in the sky. These auroral electrojets push about a million amps of electrical charge around the poles every second. They can create some…
NASA’s Lucy spacecraft has its next flyby target, the small main belt asteroid Donaldjohanson, in its sights. By blinking between images captured by Lucy on Feb. 20 and 22, this animation shows the perceived motion of Donaldjohanson relative to the…