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Photo by Rebecca Lacey in Cambridge, Idaho

What is a supermoon?

Are supermoons hype? In our opinion … no, just modern folklore. And they cause real physical effects, such as larger-than-usual tides.

Comet Halley, photographed in 1986, via NASA.

Today in science: Edmond Halley

He’s the astronomer for whom Halley’s Comet is named. It was the first comet ever predicted to return.

Path of 2017 total solar eclipse, via Fred Espenak.

Total eclipse of sun: August 21, 2017

All you need to know about the 1st total solar eclipse visible from the contiguous U.S. since 1979, from eclipse master Fred Espenak. Start planning now!

Wayne Boyd shared his photo of the ISS passing over Marstons Mills, Massachusetts on November 4, 2016.  Thanks Wayne!

How to spot ISS in your sky

A new map-based feature in NASA’s Spot the Station program makes it even easier to track the International Space Station as it passes over you.

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Spacecraft catches partial solar eclipse

On Sunday, October 30, NASA’s Solar Dynamics Observatory caught the moon passing in front of the sun.

Near-Earth asteroid 2016 VA swept within only 0.2 times the moon's distance last night. Image via Virtual Telescope Project.

Asteroid, discovered November 1, swept past

Astronomers discovered asteroid 2016 VA on November 1, 2016, just hours before it passed within 0.2 times the moon’s distance of Earth. Images here.

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Curiosity finds small meteorite on Mars

It’s not the first meteorite found by a rover on Mars, and won’t be the last. In fact, in several ways, Mars is a meteorite-hunter’s paradise. Photos here.

This artist's concept illustrates how the most extreme "pumpkin star" found by Kepler and Swift compares with the sun. Both stars are shown to scale. KSw 71 is larger, cooler and redder than the sun and rotates four times faster. Rapid spin causes the star to flatten into a pumpkin shape, which results in brighter poles and a darker equator. Rapid rotation also drives increased levels of stellar activity such as starspots, flares and prominences, producing X-ray emission over 4,000 times more intense than the peak emission from the sun. KSw 71 is thought to have recently formed following the merger of two sun-like stars in a close binary system. Image via NASA's Goddard Space Flight Center/Francis Reddy

Check out fast-spinning ‘pumpkin’ stars

These stars produce X-rays at 100 times our sun’s peak levels. They spin so fast they’ve been squashed into pumpkin-like shapes.

Image Credit: NASA/JHUAPL/SwRI

New Horizons returns last of Pluto data

Remember when they said it would take more than a year for New Horizons to send its data back from Pluto? Now, say scientists, “We have our pot of gold.”

Image via NASA/ ESA/ G. Bacon, STScI.

Earth-sized planets with lots of water

A computer simulation suggests that low-mass stars might be a good place to look for Earth-sized exoplanets, in their stars’ habitable zones.