Journey back to 2015 when the Dawn spacecraft first orbited Ceres, the colossal dwarf planet in our inner solar system. Dive ...

NASA’s Terra satellite, launched in 1999, is approaching retirement after over 26 years, continuing to provide long-term Earth observations of land, atmosphere, and oceans.

CERES program updates include operational satellite instruments, algorithm advancements, machine learning applications, and ongoing missions measuring Earth’s energy budget and climate system changes.

When NASA’s Dawn spacecraft arrived at Ceres, scientists expected to find a cold, inactive relic of the early solar system.

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Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

It is with a heavy heart that I announce that NASA Earth Science Communications has directed The Earth Observer to conduct an ...

Explore This SectionEarthEarth ObserverEditor's CornerFeature ArticlesMeeting SummariesNewsScience in the NewsCalendarsIn ...

If you were to ask a group of dedicated amateur astronomers to list their favorite telescopic targets, few if any would ...

Saturn is on display in the early-evening sky this month along with Uranus and Neptune, both within reach of binoculars.

Godspeed, Artemis 2! As early as February, 4 astronauts will board NASA's Orion capsule atop the SLS rocket in Florida for 10 ...

Four astronauts are about to become the first humans to venture near the moon in more than half a century since NASA's iconic ...