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Sun
Sun activity: A calm before a storm?
As of May 23, 2022, sun activity has stayed low. Is this the calm before the next storm of activity?
May 23, 2022
Tonight
Mars and Jupiter conjunction on May 29
You can view the Mars and Jupiter conjunction before sunrise on the morning of May 29. The two planets will appear about a full moon's width apart.
May 23, 2022
Sun
The sun as you’ve never seen it
ESA's Solar Orbiter reached perihelion, its closest point to the sun, in March. Here are stunning closeup images as never seen before.
May 22, 2022
Brightest Stars
Polaris is the North Star
Many people think Polaris is the brightest star, but it's only 50th in brightness. Still, Polaris is famous because the entire northern sky wheels around it.
May 22, 2022
Human World
Space
Scientists grow plants in lunar soil
Scientists were able to grow plants in lunar soil. They weren't quite as robust as those grown in earthly soil. But it's a key step for future space missions.
May 22, 2022
Space
Boeing’s Starliner delivers cargo to ISS
Boeing’s Starliner has arrived at the International Space Station. Watch the hatch opening on NASA Live at this post today at 11:30 EDT.
May 20, 2022
Human World
Space
Video: Starlink satellite train passes over
A sky photographer captured the a train of Starlink satellites on May 16, 2022, two days after Spacex launched them on May 14, 2022.
May 20, 2022
Earth
You can hear an aurora (even when you can’t see it)
A researcher recorded sounds of the aurora - cracks and pops - during moderate geomagnetic activity even when there was no aurora visible.
May 20, 2022
Constellations
Meet Musca the Fly, a southern constellation
Musca the Fly is a constellation that lies deep in southern skies and circles the south celestial pole, making it visible any night of the year.
May 20, 2022
Space
Voyager 1 mystery: Sending random data
Voyager 1, the most distant humanmade object from Earth, has been sending back strange data, a mystery scientists are trying to solve.
May 19, 2022
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