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Positioning, Navigation, and Timing (PNT)
What is PNT? From pinpointing a spacecraft’s location to timing science measurements, positioning, navigation, and timing enable NASA missions to explore farther, operate safely, and return more science data to Earth. NASA’s SCaN (Space Communications and Navigation) Program manages and…
The Interoperable Space Service Volume
GNSS Use in Space Global Navigation Satellite Systems (GNSS), including the U.S. Global Positioning System (GPS), were designed to provide positioning, navigation, and timing (PNT) services to users on land, sea, and in the air. Now, they are also being…
Arctic Sea Ice 6th Lowest on Record; Antarctic Sees Record Low Growth
Arctic sea ice likely reached its annual minimum extent on September 19, 2023, making it the 6th lowest year in the satellite record
Spectrum Overview
Virtually every endeavor that NASA undertakes requires communications or data transfer via the electromagnetic spectrum. NASA relies solely on Space Communications and Navigation (SCaN) to provide this vital service to all of its missions. Today and in the coming years,…
SCaN Small Business Innovation Research (SBIR) Optical Comm Workshop 2017
NASA Space Communications and Navigation (SCaN) is hosting a one day workshop focused on optical communication technologies to bring large and small businesses (SB) together to accelerate the development, demonstration and infusion of optical communication technologies into systems that are…
NASA Spectrum Usage
Below 20 GHz | 1215 MHz – 4400 MHz 1215-1300 MHz Space Research Services (SRS)/Earth Exploration Satellite (EES) – Active1370-1427 MHz Space Research Services (SRS)/Earth Exploration Satellite (EES) – Passive1435-1535 MHz Aeronautics Telemetry1750-1850 MHz Space Research Services (SRS) – Earth-to-Space Region 22025-2110 MHz Space Research…
GPS
What is GPS? The Global Positioning System (GPS) is a space-based radio-navigation system, owned by the U.S. Government and operated by the United States Air Force (USAF). It can pinpoint a three dimensional position to meter-level accuracy and time to…
October’s Night Sky Notes: From Galileo to Clipper, Exploring Jupiter’s Moons
In 1610, Galileo famously chronicled four of Jupiter’s largest moons. 414 years later, NASA’s Europa Clipper will take us closer than ever before.
Government and Industry Collaboration Leads to First Air Taxi Delivery
A new air taxi from the manufacturer Joby Aviation will allow NASA to evaluate how this kind of vehicle could be integrated into our skies for everyday use, while the Air Force researches its potential military use. On Sept. 25,…
Tracking Nightlights in Libya
Cities and towns darkened after a cyclone unleashed torrential flooding along the country’s coast.
NASA Seeks Solutions to Detect, Track, Clean Up Small Space Debris
Decades of space exploration have provided us with invaluable knowledge of Earth, our Solar System, and beyond. But, it has also led to an unintended consequence – orbital debris. In an effort to clean up space, NASA is seeking solutions…
Detect, Track, and Remediate: The Challenge of Small Space Debris
This competition invites creative minds from around the world to contribute groundbreaking concepts that address the critical issue of small debris in low Earth orbit (LEO) environment. LEO encompasses Earth-centered orbits with an altitude of 2,000 km or less. LEO…
Historic Wind Tunnel Facility Testing NASA’s Mars Ascent Vehicle Rocket
By Jessica Barnett The MAV (Mars Ascent Vehicle) team recently completed wind tunnel testing at NASA’s Marshall Space Flight Center in a facility that has been a critical part of NASA missions going all the way back to the Apollo…
The Impact of Solar Eclipses on the Structure and Dynamics of Earth’s Upper Atmosphere
By McKenzie DentonHamSCI Citizen Science Team Member Solar eclipses can have a noticeable impact on the structure and dynamics of Earth’s upper atmosphere – the ionosphere. This is primarily due to the sudden reduction in solar radiation reaching the Earth’s…
Science in Space: Week of Sept. 22, 2023 – Exposing Materials to Space
Crew members aboard the International Space Station conducted a variety of scientific investigations during the week ending Sept. 22, 2023, including conducting MISSE-18. Materials International Space Station Experiment (MISSE) is a series of investigations, sponsored by the ISS National Lab,…
Skylab 3 Astronauts Splash Down after Record 59 Days in Space
On Sept. 25, 1973, the longest human spaceflight up to that time ended with the splashdown of the Skylab 3 crew of Alan L. Bean, Owen K. Garriott, and Jack R. Lousma. Their 59-day flight more than doubled the previous…
Sols 3957-3959: Curiosity the Cautious Rover!
When I opened the workspace imagery this morning, I was happy to see some nice big rock outcrops in reach of the rover and started to pick some nice targets for contact science with APXS, before realizing that one of…
Sols 3960-3961: Big Fan of Rock Bands
Despite a few bumps in the road, Curiosity tenaciously pushed on and has finally arrived at the intriguing light- and dark-toned bands.
“Sombrero Rock”: A Case of Case-Hardening?
Mars never fails to provide us with interestingly-shaped rocks, and recent observations have been no exception.
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