Archives

April 2021



NASA's Space to Ground is your weekly update on what's happening aboard the International Space Station.


The Copernicus Sentinel-2 mission takes us over Bucharest - the capital and largest city of Romania.


NASA's Ingenuity Mars Helicopter is two days away from making humanity's first attempt at powered, controlled flight of an aircraft on another planet.


Two Russian spaceships (from left), the Soyuz MS-17 crew ship and the ISS Progress 77 cargo craft, are pictured docked to the International Space Station as it orbited into a sunrise 264 miles above the South Pacific.


The ability to quickly and cost-effectively screen people for COVID-19 is an essential part of addressing the ongoing pandemic, and NASA is leveraging its expertise to assist in tackling the issue head-on.


The almost 15-million-year-old Nördlinger Ries is an asteroid impact crater filled with lake sediments. Its structure is comparable to the craters currently being explored on Mars.


A global science collaboration using data from NASA's Neutron star Interior Composition Explorer (NICER) telescope on the International Space Station has discovered X-ray surges accompanying radio bursts from the pulsar in the Crab Nebula.


NASA's Perseverance Mars rover took a selfie with the Ingenuity helicopter, seen here about 13 feet (4 meters) away in this image from April 6, 2021, the 46th Martian day, or sol, of the mission.


Smoke from hundreds of fires in Nepal has drastically reduced air quality in recent weeks, causing the country to cancel school until Friday so students can avoid the pollution and potential health risks.


NASA's OSIRIS-REx completed its last flyover of Bennu around 6 a.m. EDT (4 a.m. MDT) April 7 and is now slowly drifting away from the asteroid; however, the mission team will have to wait a few more days to find out how the spacecraft changed the surface of Bennu when it grabbed a sample of the asteroid.


Astronomers have found evidence that the first exoplanet that was identified transiting its star could have migrated to a close orbit with its star from its original birthplace further away.


Using data from NASA's Spitzer Space Telescope, scientists have identified the three fastest-spinning brown dwarfs ever found.


NASA's Lucy spacecraft has successfully completed thermal vacuum testing of both solar panels, the final step in checking out these critical spacecraft components in preparation for launch this fall.


In a recent paper, Harvard researchers found that raindrops are remarkably similar across different planetary environments, even planets as drastically different as Earth and Jupiter.


The universe is expanding at an ever-increasing rate, and while no one is sure why, researchers with the Dark Energy Survey (DES) at least had a strategy for figuring it out: They would combine measurements of the distribution of matter, galaxies and galaxy clusters to better understand what's going on.


The world's first ground-based observations of the bare nucleus of a comet nearing the end of its active life revealed that the nucleus has a diameter of 800 meters and is covered with large grains of phyllosilicate; on Earth large grains of phyllosilicate are commonly available as talcum powder.


NASA's Hubble Space Telescope is "seeing double." Peering back 10 billion years into the universe's past, Hubble astronomers found a pair of quasars that are so close to each other they look like a single object in ground-based telescopic photos, but not in Hubble's crisp view.


A waning gibbous Moon is pictured above the Earth's horizon as the International Space Station orbited 269 miles above the Atlantic Ocean off the coast of Argentina.


Evening temperatures at Jezero Crater can plunge as low as minus 130 degrees Fahrenheit (minus 90 degrees Celsius), which can freeze and crack unprotected electrical components and damage the onboard batteries required for flight.


With data from a 2016 expedition, scientists supported by NASA are shedding more light into the complex processes under the Greenland Ice Sheet that control how fast its glaciers slide toward the ocean and contribute to sea level rise.


Zion National Park, Utah is featured in this image photographed by an Expedition 17 crewmember on the International Space Station.


Scientists from Russia and Germany studied the molecular composition of carbonaceous chondrites - the insoluble organic matter of the Murchison and Allende meteorites


NASA's Space to Ground is your weekly update on what's happening aboard the International Space Station.


Today - ISS Reboost: Today the ISS performed a reboost using the SM Aft 75P R&D thrusters at 7:14 AM CT.


Within a few days, Ingenuity will be on the surface of Mars. Until now it has been connected to the Perseverance rover, which allowed Ingenuity to charge its battery as well as use a thermostat-controlled heater powered by the rover.


With Easter right around the corner, we take a look at four egg-shaped buildings visible from space as captured by the Copernicus Sentinel-2 mission.


Nervous system and robotics research were the dominant research theme aboard the International Space Station on Thursday.


Rocky Mountain National Park in Colorado is pictured from the International Space Station as it orbited 252 miles above.


Jupiter's moon Europa may have the potential to harbor life. The spacecraft will use multiple flybys of the moon to investigate the habitability of this ocean world.


NASA's OSIRIS-REx mission is on the brink of discovering the extent of the mess it made on asteroid Bennu's surface during last fall's sample collection event.


With NASA preparing to send humans to Mars in the 2030s, researchers are studying the physical effects of spending long periods in space.


Four Expedition 64 astronauts are getting ready to move their SpaceX Crew Dragon vehicle to another docking port on the International Space Station next week.


When I was growing up in the 1960s they'd show those old sci fi films from the 1950s on TV as an example of what the post-Apollo future would be like. People would climb into silvery rockets with fins and then they'd blast off - and land somewhere - in the same rocket.


New observations with the European Southern Observatory's Very Large Telescope (ESO's VLT) indicate that the rogue comet 2I/Borisov, which is only the second and most recently detected interstellar visitor to our Solar System, is one of the most pristine ever observed.


Astronomers have detected X-rays from Uranus for the first time, using NASA's Chandra X-ray Observatory. This result may help scientists learn more about this enigmatic ice giant planet in our solar system.


Researchers from Brown University have discovered a previously unknown type of ancient crater lake on Mars that could reveal clues about the planet's early climate.


A research team of international space scientists, led by Dr Matthias van Ginneken from the University of Kent's School of Physical Sciences, has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.