Washington (AFP) Sept 15, 2022
Discovered by Galileo 400 years ago, the rings of Saturn are about the most striking thing astronomers with small telescopes can spot in our solar system. But even today, experts cannot agree on how or when they formed. A new study published Thursday in the prestigious journal Science sets out to provide a convincing answer. Between 100-200 million years ago, an icy moon they named C

The ozone layer in our upper atmosphere protects Earth from the harmful effects of ultraviolet radiation. The use of human-produced chemicals in our atmosphere used for many years depleted Earth’s ozone layer. However, the reduction in the consumption of ozone-depleting substances driven by the Montreal Protocol – an international treaty designed to protect the ozone layer – has allowed for the ozone hole to slowly recover. This global agreement demonstrates the power of international commitment and immediate global action in protecting our environment.

ESA has been involved in monitoring the ozone for over two decades. Today, 16 September, marks

Viasat took a step closer to buying London-based Inmarsat Sept. 16 after the British government ruled it poses no risk to the U.K.’s national security.

The post Viasat’s Inmarsat acquisition clears UK national security review appeared first on SpaceNews.

Satellite radar startups disagree over how much of their resources should be moved to meet anticipated demand from commercial customers and away from governments, which today provide the bulk of revenues.

The Space Systems Command, the Space Development Agency and the Missile Defense Agency have formed a new program office to coordinate disparate procurements of satellites to detect ballistic and hypersonic missiles.

The post New tri-agency office to coordinate U.S.

NASA has released a request for proposals for a second human lunar lander for the Artemis program to join the Starship lander under development by SpaceX.

The post NASA requests proposal for second Artemis crewed lunar lander appeared first on SpaceNews.

Washington DC (SPX) Sep 18, 2022
NASA is seeking proposals for sustainable lunar lander development and demonstration as the agency works toward a regular cadence of Moon landings. Through Artemis missions, NASA is preparing to return humans to the Moon, including the first woman and first person of color, for long-term scientific discovery and exploration. Under the solicitation, Human Landing System Sustaining Lunar Dev

Tempe AZ (SPX) Sep 18, 2022
Our sun is surrounded by multi-million-degree plasma called the corona, beautifully visible during a total solar eclipse. About once a day, a magnetic explosion on the sun will send a chunk of the corona hurtling into interplanetary space. This is called a coronal mass ejection (CME) and scientists believe that this almost certainly happens on other stars. Average CMEs will produce a

Exeter UK (SPX) Sep 18, 2022
The quest to uncover intricacies of the atmospheres of faraway planets has reached an important milestone. An international team, including astrophysicists from the University of Exeter, is taking lessons and techniques learned from Earth climate science to pave the way to robustly model atmospheres of planets orbiting distant stars, aiding in the search for potentially habitable exoplanet

Columbia MD (SPX) Sep 18, 2022
Twisted magnetic fields around binary systems can reveal how the stellar system came together. Circumbinary planets - planets that orbit around two stars, like the fictional Star Wars planet Tatooine and its two suns - exist in the Universe, and are sometimes referred to as Tatooine planets. Systems in which two stars rotate around each other, called binary star systems, are incredibly com