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Abell 370

Cosmology, Galaxies, Science

Dark Energy Explorers: How you can help unravel one of the universe’s biggest mysteries

This shot of the Pleiades (M45) — which comprises two hours of integration time taken with a 10-inch scope, Atik 16200 CCD, and Starizona’s Nexus 0.75x Newtonian Focal Reducer/Coma Corrector — displays sharp details out to the edges.

Telescopes and Equipment

Why Starizona’s Nexus coma corrector wows

Comet Tsuchinshan-ATLAS in 2024

Observing, Upcoming Events

Comet Tsuchinshan-ATLAS will soon move into the evening sky

Beverly Lynds

Beverly Lynds, creator of landmark catalog of dark nebulae, dies at 95

Robotic Spaceflight, Solar System

What to know about the Hera mission to the deflected asteroid Dimorphos

Space Exploration

Nuclear rockets could travel to Mars in half the time − but designing the reactors that would power them isn’t easy

stream of plasma from the Sun

Solar System, Stars

Is AI the key to predicting solar storms?

solar flare

Observing, Upcoming Events

Will a new solar flare produce great northern lights?

At a distance of 12 million light-years and around 105,000 light-years across, NGC 253’s angular length is close to the diameter of the Full Moon.

Deep-Sky Objects

Observe the galaxies of Sculptor

Artist's impression of Barnard b

Discovery of a tiny exoplanet sheds new light on a very old star

Eclipse success on Easter Island

Scientists recreate spiderlike formations on Mars in the lab