Riverside CA (SPX) Feb 10, 2021
A team led by astronomers at the University of California, Riverside, has found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter in the past. Galaxies that appear to have little to no dark matter - nonluminous material thought to constitute 85% of matter in the universe - complicate astronomers' understanding of t

Daytona Beach FL (SPX) Feb 10, 2021
Within the constellation Cygnus, an elderly star and its massive companion are having one last hurrah, flinging off mass at an incredible rate before they explode as supernovae and collapse into a black hole. Now, researchers including recent Embry-Riddle Aeronautical University graduate Laura M. Lee have mapped the elderly star's orbit around its oversized and equally ancient partner. In

Galileo has started testing Open Service Navigation Message Authentication (OSNMA) in its signal-in-space, allowing the first-ever OSNMA-protected position fix to be successfully computed. Testing will continue over the next months, ahead of a so-called ‘public observation’ phase. This is the first-ever transmission of authentication features in open GNSS signals of a global navigation system.

WASHINGTON — NASA is no longer considering launching the Europa Clipper mission on the Space Launch System, deciding instead to launch the spacecraft on a commercial rocket it will procure in the next year.

WASHINGTON — Technological advances in small satellites are helping improve spacecraft designs and pushing the industry to take more risks, Jim McClelland, vice president of mission architecture at Maxar Technologies, said Feb. 10 at the SmallSat Symposium.

“It’s been a very exciting transformation of the industry,” he said.

In a February 1, 2021 SpaceNews article titled, “An open system for missile-warning satellite data is in the works but faces challenges,” a number of assertions were made that were factually incorrect, misleading and taken out of context about Lockheed Martin’s role in our nation’s premiere missile warning systems, including the Space-Based Infrared System (SBIRS), the Next Generation Overhead Persistent Infrared (Next Gen OPIR) system and the missile warning mission’s next generation ground control system, the Future Operationally Resilient Ground Evolution (FORGE) MDP (Mission Data Processing) and Enterprise Ground Services (EGS).

WASHINGTON — With its first successful launch in the books, Virgin Orbit is considering ways it can expand into adjacent markets, including supporting ventures developing satellite systems.

During a keynote presentation at the SmallSat Symposium Feb.

WASHINGTON — The U.S. military has built “very exquisite” satellites that operate for decades and is now looking to transition to a different space architecture that takes advantage of emerging technologies, Steve Butow, director of the Defense Innovation Unit’s space portfolio, said Feb.

Image: At the rim of a crater

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The ESA-Roscosmos ExoMars Trace Gas Orbiter is investigating the martian atmosphere. Discovering new gases related to active process and looking for their sources is a key goal of the mission. ExoMars has discovered hydrogen chloride for the first time. It appeared during a global dust storm in 2018 and disappeared again afterwards. The detection was made in both hemispheres simultaneously so it is unlikely to come from volcanic activity. Seasonal change that triggers dust activity is thought to be the driving force behind the observation. Salt in the dusty surface – left over from when Mars had