Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

With less than a year in orbit, the Southwest Research Institute-led PUNCH mission has made major accomplishments, imaging the Sun in context while tracking comets and enormous space weather events as ...

After less than a year in orbit, the Southwest Research Institute-built PUNCH spacecraft have made major accomplishments, ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building bodies. The structures often resemble our asteroid and Kuiper belts, hinting ...

The European Space Agency's Solar Orbiter spacecraft has achieved a groundbreaking milestone by capturing the first-ever detailed images of the sun's south pole earlier this year. This unprecedented ...

The sun is governed by a strict rhythm. The magnetic activity of the sun displays a cyclic variation, reaching a maximum approximately every eleven years. Two enormous plasma circulations, each in one ...

High above the Sun’s blazing equator lie its mysterious poles, the birthplace of fast solar winds and the heart of its magnetic heartbeat. For decades, scientists have struggled to see these regions, ...

Solar panels generate “free” electricity, but installing a system still costs money. A typical American household needs a 10-kilowatt (kW) system to adequately power their home, which costs $28,241 in ...

The European Space Agency-led spacecraft Solar Orbiter, which carries instruments designed and built at UCL, has captured the first ever images of the Sun’s south pole. All previous images of the Sun ...

Learn about the great planetary alignment occurring on February 28, 2025, and the misconceptions surrounding this type of celestial event. Jack Knudson is an Associate Editor for Discover Magazine who ...