Space

Mercury reaches greatest elongation west of the Sun on 25 October, providing an opportunity to observe the elusive innermost planet’s best showing of the year before sunrise.

Elon Musk, the billionaire founder of SpaceX, said Friday the company’s huge new Starship rocket may be ready for its first orbital test launch from South Texas as soon as November, but the schedule comes with two big uncertainties that could push the launch to next year.

Media accreditation is open for the upcoming launch of NASA’s Imaging X-ray Polarimetry Explorer (IXPE) mission, which will measure polarized X-rays from exotic cosmic objects, such as black holes and neutron stars, to better understand these types of phenomena and extreme environments.

On October 23, 2007, the space shuttle Discovery launched the Harmony module to the International Space Station. See how it happened in our On This Day In Space series.

Arianespace delayed the launch from French Guiana of a European Ariane 5 rocket with two geostationary communications satellites Friday to conduct more checks of ground support equipment at the spaceport. The mission, set to loft payloads for SES and the French military, is the final Ariane 5 flight before a […]

The Tucson Amateur Astronomy Association is preserving and sharing dark skies at its observing complex near the Chiricahua Mountains.

NASA has completed stacking of the agency’s mega-Moon rocket and spacecraft that will launch the next generation of deep space operations, including Artemis missions on and around the Moon.

Today (Oct. 22), Space Chat will explore what’s new in space, including “Dune” in space, a Martian blackout and SpaceX’s Starship roaring to life.

NASA’s Perseverance rover provides a razor-sharp mosaic showing its view across the floor of Jezero Crater, including remnants of a delta where water once flowed into a broad lake that may have provided a habitable environment for microbial life.

South Korea’s first domestically produced satellite launcher failed to reach orbit on its inaugural test flight Thursday. A preliminary review of data indicated the rocket’s third stage shut down early, the Korea Aerospace Research Institute said.