In early January NASA’s retired Earth Radiation Budget Satellite (ERBS) is expected to reenter Earth’s atmosphere after almost four decades in space. For 21 of those years, the ERBS actively investigated how the Earth absorbed and radiated energy from the Sun, and made measurements of stratospheric ozone, water vapor, nitrogen dioxide, and aerosols. As of […]
An international team of astronomers observed 2020 XL5 and confirmed it is an Earth Trojan asteroid orbiting the sun along the same path as Earth. 2020 XL5 is the second, and larger, Earth Trojan asteroid discovered. The team of U.S. National Science Foundation researchers used images of the sky’s horizon at daybreak, captured by the Southern Astrophysical Research Telescope […]
Using data from the ICESat and ICESat-2 laser altimeters, scientists precisely measured how much ice has been lost from ice sheets in Antarctica and Greenland between 2003 and 2019. The Antarctic Peninsula, seen here, was one of the fastest changing regions of the continent. Credits: NASA / K. Ramsayer The results provide insights into how […]
