OrbitalHub

NASA dicit:

NASA’s Dawn spacecraft captured pictures in visible and infrared wavelengths, which were combined to create this false-color view of a region in 57-mile-wide (92-kilometer-wide) Occator Crater on the dwarf planet Ceres (in the main asteroid belt between Mars and Jupiter). Here, recently exposed brine, or salty liquids, in the center of the crater were pushed up from a deep reservoir below Ceres’ crust. In this view, they appear reddish.

Seen here is Cerealia Facula (“facula” means bright area), a 9-mile-wide (15-kilometer-wide) region with a composition dominated by salts. The central dome, Cerealia Tholus, is about 1.9 miles (3 kilometers) across at its base and 1,100 feet (340 meters) tall. The dome is inside a central depression about 3,000 feet (900 meters) deep.

Dawn’s mission is managed by NASA’s Jet Propulsion Laboratory, a division of Caltech, for the agency’s Science Mission Directorate in Washington. Dawn is a project of the directorate’s Discovery Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama. JPL is responsible for overall Dawn mission science. Northrop Grumman in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, Max Planck Institute for Solar System Research, Italian Space Agency and Italian National Astrophysical Institute are international partners on the mission team.

Video credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

NASA dicit:

Scientists using NASA’s telescope on an airplane, the Stratospheric Observatory for Infrared Astronomy, discovered water on a sunlit surface of the Moon for the first time. SOFIA is a modified Boeing 747SP aircraft that allows astronomers to study the solar system and beyond in ways that are not possible with ground-based telescopes. Molecular water, H2O, was found in Clavius Crater, one of the largest craters visible from Earth in the Moon’s southern hemisphere. This discovery indicates that water may be distributed across the lunar surface, and not limited to cold, shadowed places.

Video credit: NASA’s Ames Research Center

Wikipedia dicit:

The Stratospheric Aerosol and Gas Experiment (SAGE) is a series of remote sensing satellite instruments used to study the chemical composition of Earth’s atmosphere. Specifically, SAGE has been used to study the Earth’s ozone layer and aerosols at the troposphere through the stratosphere. The SAGE instruments use solar occultation measurement technique to determine chemical concentrations in the atmosphere. Solar occultation measurement technique measures sunlight through the atmosphere and ratios that measurement with a sunlight measurement without atmospheric attenuation. This is achieved by observing sunrises and sunsets during a satellite orbit. Physically, the SAGE instruments measure ultraviolet/visible energy and this is converted via algorithms to determine chemical concentrations. SAGE data has been used to study the atmospheres aerosols, ozone, water vapor, and other trace gases.

Video credit: NASA Langley Research Center

NASA dicit:

The Sentinel-6 Michael Freilich satellite, carried atop a SpaceX Falcon 9 rocket, lifts off from Space Launch Complex 4 at Vandenberg Air Force Base in California on November 21, 2020. Launch occurred at 9:17 a.m. PST (12:17 p.m. EST). The mission is an international collaboration between NASA and several partners, and it will collect the most accurate data yet on global sea level and how our oceans are rising in response to climate change. NASA’s Launch Services Program based at Kennedy Space Center was responsible for launch management.

Video credit: NASA’s Kennedy Space Center

NASA dicit:

NASA’s SpaceX Crew-1 mission gets underway with the successful liftoff of the company’s Falcon 9 rocket and Crew Dragon spacecraft carrying NASA astronauts Mike Hopkins, Victor Glover, Shannon Walker, and Japan Aerospace Exploration Agency astronaut Soichi Noguchi. Launch occurred November 15, 2020, at 7:27 p.m. EST from historic Launch Complex 39A at NASA’s Kennedy Space Center in Florida. Crew-1 is the first regular crew mission of a U.S. commercial spacecraft with astronauts to the International Space Station as part of NASA’s Commercial Crew Program.

Video credit: NASA’s Kennedy Space Center

NASA dicit:

While NASA is working aggressively to meet our near-term goal of landing the first woman and next man on the Moon by 2024, our Artemis program also is focused on taking steps that will establish a safe and sustainable lunar exploration architecture. NASA is taking a critical step forward by releasing a solicitation for commercial companies to provide proposals for the collection of space resources.

To meet NASA’s requirements, a company will collect a small amount of Moon “dirt” or rocks from any location on the lunar surface, provide imagery to NASA of the collection and the collected material, along with data that identifies the collection location, and conduct an “in-place” transfer of ownership of the lunar regolith or rocks to NASA. After ownership transfer, the collected material becomes the sole property of NASA for our use.

NASA’s goal is that the retrieval and transfer of ownership will be completed before 2024. The solicitation creates a full and open competition, not limited to U.S. companies, and the agency may make one or more awards. The agency will determine retrieval methods for the transferred lunar regolith at a later date.

Over the next decade, the Artemis program will lay the foundation for a sustained long-term presence on the lunar surface and use the Moon to validate deep space systems and operations before embarking on the much farther voyage to Mars. The ability to conduct in-situ resources utilization (ISRU) will be incredibly important on Mars, which is why we must develop techniques and gain experience with ISRU on the surface of the Moon.

Video credit: NASA/Sonnet Apple