Leo is a prominent sight for stargazers in April. Its famous sickle, punctuated by the bright star Regulus, draws many a beginning stargazer’s eyes, inviting deeper looks into some of Leo’s celestial delights, including a great double star and a famous galactic trio. Leo’s distinctive forward sickle, or “reverse question mark,” is easy to spot […]

A massive, old caldera and more recently formed craters shape the landscape in the eastern Sierra Nevada.

The Moon, seen here backlit by the Sun during a solar eclipse on April 6, 2026, is photographed by one of the cameras on the Orion spacecraft’s solar array wings. During lunar flyby, the Artemis II astronauts observed a solar eclipse that only they could see due to their unique position. See more photos from

Twin control rooms at NASA’s Marshall Space Flight Center in Huntsville, Alabama, are actively supporting real-time mission operations in lunar orbit as part of the agency’s Artemis II mission, helping ensure astronaut safety and mission success as the crew prepares to return to Earth Friday, April 10. The LUCA (Lunar Utilization Control Area) and LESA

An early autumn storm left higher elevations in southern Argentina with a fresh and fleeting coat of white.

At 00:35 CEST today (18:35 local time on 1 April), NASA’s Space Launch System rocket lifted off from the Kennedy Space Center in Florida, carrying four astronauts aboard the Orion spacecraft on Artemis II. At the heart of the mission is ESA’s European Service Module, which powers, propels and sustains the Orion spacecraft and its crew on their journey around

Video: 00:02:12 Artemis II launched on 2 April at 00:35 CEST, (18:35 local time on 1 April), sending astronauts around the Moon for the first time in over 50 years. At the heart of the mission is ESA’s European Service Module, which powers, propels and sustains the Orion spacecraft and its crew on their journey

‘Extreme but not exotic,’ – a glimpse at Comet 3I/ATLAS through the eyes of the European Space Agency’s Jupiter Icy Moons Explorer (Juice).

Image: In an unusual perspective for an Earth-observing satellite, the Copernicus Sentinel-2 mission captures this image of Earth’s only natural satellite.