GREENBELT, Md. (NASA PR) — We’ve never met some of the Sun’s closest neighbors until now. In a new study, astronomers report the discovery of 95 objects known as brown dwarfs, many within a few dozen light-years of the Sun.
They’re well outside the solar system, so don’t experience heat from the Sun, but still inhabit a region astronomers consider our cosmic neighborhood. This collection represents some of the coldest known examples of these objects, which are between the sizes of planets and stars.
Yesterday, the OSIRIS-REx spacecraft performed its final practice run of the sampling sequence, reaching an approximate altitude of 131 feet (40 meters) over sample site Nightingale before executing a back-away burn. Nightingale, OSIRIS-REx’s primary sample collection site, is located within a crater in Bennu’s northern hemisphere.
by Francis Reddy NASA’s Goddard Space Flight Center
Greenbelt, Md. — On July 4, NASA’s Transiting Exoplanet Survey Satellite (TESS) finished its primary mission, imaging about 75% of the starry sky as part of a two-year-long survey. In capturing this giant mosaic, TESS has found 66 new exoplanets, or worlds beyond our solar system, as well as nearly 2,100 candidates astronomers are working to confirm.
by Lonnie Shekhtman NASA’s Goddard Space Flight Center
GREENBELT, Md. — Dozens of times over the last decade NASA scientists have launched laser beams at a reflector the size of a paperback novel about 240,000 miles (385,000 kilometers) away from Earth. They announced today, in collaboration with their French colleagues, that they received signal back for the first time, an encouraging result that could enhance laser experiments used to study the physics of the universe.
GREENBELT, Md. (NASA PR) — Taking advantage of a total lunar eclipse, astronomers using NASA’s Hubble Space Telescope have detected Earth’s own brand of sunscreen – ozone – in our atmosphere. This method simulates how astronomers and astrobiology researchers will search for evidence of life beyond Earth by observing potential “biosignatures” on exoplanets (planets around other stars).
GREENBELT, Md. — Insights and technology gleaned from creating a carbon-measuring instrument for Earth climate studies is being leveraged to build another that would remotely profile, for the first time, water vapor up to nine miles above the Martian surface, along with wind speeds and minute particles suspended in the planet’s atmosphere.
by Nancy N. Jones NASA’s Goddard Space Flight Center in
Greenbelt, Md. — NASA’s first asteroid sampling spacecraft is making final preparations to grab a sample from asteroid Bennu’s surface. Next week, the OSIRIS-REx mission will conduct a second rehearsal of its touchdown sequence, practicing the sample collection activities one last time before touching down on Bennu this fall.
By Theresa Johnson and Lori Keesey NASA’s Goddard Space Flight Center
GREENBELT, Md. (NASA PR) — NASA astrophysicists and engineers are adapting detectors used by earthbound supercolliders and creating them the same way electronics companies produce all modern consumer devices, including cell phones and laptops.
SAN DIEGO, CA, July 22, 2020 (General Atomics PR) — General Atomics Electromagnetic Systems (GA-EMS) has been awarded a contract by NASA’s Goddard Space Flight Center (GSFC) to build the Total and Spectral solar Irradiance Sensor-2 (TSIS-2) spacecraft which will provide measurements of solar irradiance and high-quality data for the long term climate record. GA-EMS will leverage its proven Orbital Test Bed (OTB) platform architecture to design and develop the satellite for TSIS-2, which is scheduled to launch in early 2023.
“We are extremely pleased to expand our relationship with NASA and to continue supporting their research goals with our flexible, modular OTB platforms,” stated Scott Forney, president of GA-EMS. “This contract is another exciting opportunity that demonstrates GA-EMS’ ability to deliver satellites on an aggressive schedule. The OTB platform will allow us to quickly and affordably integrate the TSIS-2 payload suite onto a free-flying spacecraft that will operate in a sun-synchronous orbit and allow NASA continuous solar monitoring capabilities throughout its mission lifecycle.”
GREENBELT, Md. (NASA PR) — On July 16, 2020, the Laser Communications Relay Demonstration (LCRD) payload was installed and integrated on the U.S. Department of Defense Space Test Program Satellite 6 (STPSat-6) in preparation for a 2021 launch.
As an experimental payload, LCRD will demonstrate the robust capabilities of laser communications, which can provide significant benefits to missions, including bandwidth increases of 10 to 100 times more than radio frequency systems.
Prior to spacecraft integration, the LCRD payload went through several tests and blanket installations at Northrop Grumman’s integration and test facility in Dulles, Virginia. While LCRD underwent testing, Northrop Grumman technicians also prepared the spacecraft for LCRD’s integration.
Now that the two components have been fully integrated, they will undergo environmental testing and end-to-end compatibility testing to ensure the spacecraft and payload can properly communicate with one another.
LCRD will be NASA’s first two-way optical relay, sending and receiving data from missions in space to mission control on Earth. LCRD is paving the way for future optical communications missions, which could use LCRD to relay their data to the ground.
In 2022, the Integrated LCRD Low-Earth Orbit User Modem and Amplifier Terminal (ILLUMA-T), hosted on the International Space Station, will be the first LCRD demonstration from low-Earth orbit.
LCRD was built by Goddard Space Flight Center in Greenbelt, Maryland, before being shipped to the Northrop Grumman facility in January 2020. LCRD is funded by NASA’s Space Technology Mission Directorate and the Human Exploration and Operations Mission Directorate, and managed by NASA’s Technology Demonstration Missions and the Space Communications and Navigation (SCaN) program office.
By Thaddeus Cesari NASA’s Goddard Space Flight Center
REDONDO BEACH, Calif. — Now that NASA’s James Webb Space Telescope has been assembled into its final form, testing teams seized the unique opportunity to perform a critical software and electrical analysis on the entire observatory as a single, fully connected vehicle.
Known as a Comprehensive Systems Test or CST, this was the first full systems evaluation that has ever been run on the assembled observatory, and one of the final first-time activities the team will perform.
by Sarah Frazier NASA’s Goddard Space Flight Center
GREENBELT, Md. — NASA’s Parker Solar Probe was at the right place at the right time to capture a unique view of comet NEOWISE on July 5, 2020. Parker Solar Probe’s position in space gave the spacecraft an unmatched view of the comet’s twin tails when it was particularly active just after its closest approach to the Sun, called perihelion.
GREENBELT, Md. (NASA PR) — What started out as a hunt for ice lurking in polar lunar craters turned into an unexpected finding that could help clear some muddy history about the Moon’s formation.
Team members of the Miniature Radio Frequency (Mini-RF) instrument on NASA’s Lunar Reconnaissance Orbiter (LRO) spacecraft found new evidence that the Moon’s subsurface might be richer in metals, like iron and titanium, than researchers thought. That finding, published July 1 in Earth and Planetary Science Letters, could aid in drawing a clearer connection between Earth and the Moon.
WASHINGTON (NASA PR) — On behalf of the National Oceanic and Atmospheric Administration (NOAA), NASA has awarded the Space Weather Follow On-Lagrange 1 (SWFO-L1) Solar Wind Plasma Sensor (SWiPS) contract to South West Research Institute (SwRI) in San Antonio, Texas.
This is a cost plus fixed-fee contract with a total value of $15,579,930. The performance period begins on July 1 and runs for 76 months. The work will be performed at SwRI’s facility in San Antonio, Texas.