New NASA study explains how some planets have clouds of sand

New NASA study explains how some planets have clouds of sand

Clouds on Earth are made of water, but on other planets, they consist of chemicals like ammonia and ammonium hydrosulfide. Extraterrestrial clouds can also be made of silicates, the family of rock-forming minerals that make up over 90 percent of Earth’s crust. How do these clouds of small dust grains form? The temperature range at … Read more

The SOFIA Mission Is Ending, but Its Legacy Will Be Long Felt

The SOFIA Mission Is Ending, but Its Legacy Will Be Long Felt

A view of SOFIA (Stratospheric Observatory for Infrared Astronomy).Photo: NASA/Jim Ross This past April, NASA and its partners at the German space agency announced the end to the SOFIA mission. The modified Boeing 747SP jumbo jet is being retired after eight years of service, but its scientific contributions cannot be overstated. In honor of this … Read more