Posts by 

Kelly Kizer Whitt

Ceres at opposition November 27

Ceres at opposition on November 27. The dwarf planet has been passing in front of the constellation Taurus the Bull all month, including near Aldebaran.

Rare moon halo photo, captured during lunar eclipse

Eliot Herman in Tucson, Arizona, took an incredibly rare moon halo photo during the partial lunar eclipse on November 19, 2021.

Kessler syndrome of colliding satellites could make low-Earth orbit unusable

Space debris threatens ISS: the Kessler syndrome, a theory developed by NASA scientist Donald Kessler, predicts cascading collisions in orbit.

Landsat 9 returns its 1st Earth images

Landsat 9 took its first images of Earth on October 31, 2021. Enjoy these views of Earth from space, as Landsat 9 begins its monitoring of the land below.

Ceres and Aldebaran meet in early November 2021

Ceres and Aldebaran came close together as seen from Earth in early November, and EarthSky community members were ready to capture the moment.

Probing the depths of Jupiter’s storms

Juno provided data that has let scientists probe the depths of Jupiter's storms. We now know the Great Red Spot extends some 200 miles (300 km) down.

100-million-year-old crab preserved in amber

A 100-million-year-old crab is the first crab ever found in amber from the dinosaur era. The fossil bridges a gap between marine and nonmarine crabs.

The 1st extragalactic planet?

Scientists believe they might have detected the 1st extragalactic planet by examining x-rays from M51, the famous Whirlpool Galaxy.

Andromeda galaxy photos, 2021

Enjoy a photo gallery of the best Andromeda Galaxy images from EarthSky readers! The Andromeda Galaxy is a great observing target on fall evenings.

The fate of Arctic sea ice

Our warming world means the fate of Arctic sea ice could be in peril, along with the plants, animals and rich ecosystem that call it home.

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