Space

Saudi Arabia has started an astronaut program and plans to send two of its citizens to space — at least one of them a woman — as early as 2023.

Russian cosmonauts Sergey Prokopyev and Dmitry Petelin were joined by NASA astronaut Frank Rubio for launch Wednesday to begin a six-month expedition on the International Space Station. The crew lifted off from the Baikonur Cosmodrome in Kazakhstan at 9:54 a.m. EDT (1354 GMT) aboard a Soyuz rocket, and are scheduled […]

The Silver Dollar or Sculptor Galaxy is the brightest deep-sky object in the diminutive constellation Sculptor. NGC 253 is highly inclined at 78° from face-on, and doesn’t have distinct arms across its broad, 27.5′ by 6.8′ disk. Recent imaging shows a poorly developed bar and two concentrated arms amidst a […]

SpaceX is gearing up for the first-ever orbital test flight of Starship, the giant vehicle it’s building to take cargo and people to the moon and Mars. And that landmark try may be just around the corner.

Engineers are ready to reload NASA’s Artemis moon rocket with supercold fuel Wednesday to make sure a repaired liquid hydrogen quick-disconnect fitting is leak free, one of two requirements that must be met before the agency can make a third attempt to launch the huge booster September 27 on the […]

Newly discovered super-Earths add to the list of exoplanets that offer the best chance of finding life. An astronomer explains what makes these super-Earths such excellent candidates.

NASA Releases Revised Moon to Mars Objectives

What’s shaking on Mars? Thanks to the InSight lander scientists now know part of the answer is space rock impacts. The lander’s seismometer has ‘heard’ at least four strikes.

Messier 15 (NGC 7078) in Pegasus is a showpiece object of the early autumn sky and one of the finest globular clusters to grace the northern sky.

SpaceX launched a Falcon 9 rocket from Cape Canaveral Sunday night after five days of weather delays, hauling 54 more Starlink satellites to orbit as the company continues its push toward completing more than 60 missions this year.