Astronomy Essentials
Equinox fun: Track sun’s shift between now and the solstice
On this equinox, start tracking the sunset point on your western horizon. You'll see a mighty shift between now and the June solstice.
Brightest Stars
Sun
Sun news: Flares and filaments on the March Equinox
Sun news for March 19, 2024. Sun activity is high with an M6.7 flare. A beautiful prominence erupted off the southwest limb. Happy March Equinox!
Astronomy Essentials

Visible planets and night sky guide for March

Visible planets in March 2022. We're 20 days from eclipse day on April 8! Did you know? Eclipses and equinoxes are cousins. Learn more in this video.
Astronomy Essentials

Year’s fastest sunsets happen around equinoxes

The year's fastest sunsets are at the equinoxes, and the slowest are at the solstices. We're talking about how long it takes the sun to sink below the horizon.
Tonight

Equinox sun rises due east and sets due west

The 2024 March equinox occurs on March 20 at 3:06 UTC (10:06 p.m. CDT on March 19). At the equinox, the sun rises and sets due east and due west.
Earth

Titanosaurs were the biggest land animals Earth’s ever seen

Titanosaurs thrived globally after the extinction of their more famous relatives. They had over 100 species ranging from massive to relatively small.
Space

Voyager 1 spacecraft has sent a (partly) decipherable message

The Voyager 1 spacecraft started sending gibberish back to Earth in November. Now engineers have sent it a "poke" and received a message they can decipher.
Space
Sun

Are solar storms dangerous to us on Earth?

Activity on the sun affects Earth's magnetic field. It can cause geomagnetic storms and can create beautiful auroras. Are these solar storms dangerous?
Today's Image
Tonight

Eclipse day comet Pons-Brooks! Favorite photos here

Have you seen Comet Pons-Brooks yet? If not, here are some beautiful images from our talented community of photographers. Enjoy them!
Astronomy Essentials
Tonight

Color weirdness before April’s total solar eclipse

We're counting down to the April 8, 2024, total solar eclipse, which will cross North America. Colors look eerie just before the moon covers the sun. Why?

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