Asteroid Bennu, which was just sampled by NASA's OSIRIS-REx mission, only recently migrated into Earth's neighborhood, according to a detailed analysis of impact marks on boulders on its surface. The report provides a new benchmark for understanding the evolution of asteroids and offers insights into space debris hazardous to spacecraft.
Professor ARAKAWA Masahiko (Graduate School of Science, Kobe University, Japan) and Hayabusa2 mission members discovered more than 200 boulders, which either newly appeared or moved as a result of the artificial impact crater created by the Japanese spacecraft's Small Carry-on Impactor. Boulders were disturbed within a 30m radius from the impact crater center- providing important insight into asteroids' resurfacing processes.
Humankind's next giant step may be onto Mars. But before those missions can begin, scientists need to make scores of breakthrough advances, including learning how to grow crops on the red planet.
Hidden pockets of water could be much more common on the surface of the moon than scientists once suspected, according to new research led by the University of Colorado Boulder.
Material scientists from Far Eastern Federal University (FEFU) joined an international team of researchers to develop new nanocomposite ceramics (Ho3+:Y2O3-MgO) that can be employed in high-capacity laser systems operating in the medium infrared range (IR) of 2-6 micrometers. These lasers are safe for the human vision and have multiple applications in various fields of economy, including industry, atmosphere probing, medicine, and light radars. An article about the work was published in the Ceramics International.
Captured on Oct. 20, 2020 during the OSIRIS-REx mission's Touch-And-Go (TAG) sample collection event, this series of images shows the SamCam imager's field of view as the NASA spacecraft approaches and touches down on asteroid Bennu's surface, over 200 million miles away from Earth.
For anthropologists and other social scientists, the space race in the 1950s served as a period of cultural and technological transformation as well as an opportunity to advance the public good.
Simulations show it's possible to distinguish host galaxy from quasars, although still challenging due to the galaxy's small size on the sky.
NASA's Spitzer Space Telescope, decommissioned earlier this year, made important discoveries about comets, stars, exoplanets and distant galaxies, leaving a lasting legacy of solar system science. A team of more than a dozen scientists from the US and Europe collaborated on two review papers published in the journal Nature Astronomy inventorying the major discoveries made possible by Spitzer.
NASA's extensive fleet of spacecraft allows scientists to study the Sun extremely close-up - one of the agency's spacecraft is even on its way to fly through the Sun's outer atmosphere. But sometimes taking a step back can provide new insight.