Every year, millions of tons of Saharan dust flies 3,000 miles across the Atlantic to the Amazon basin, where it settles in and helps plants grow.
Since 2007, NASA's Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) has been monitoring the particles as they travel from Africa to South America, and the plumes can be spotted from space. On average, 182 million tons of dust leaves Africa annually, and of that amount about 27 million tons make it to the Amazon. Once there, it replenishes phosphorous lost from surface runoff and flooding. "Using satellites to get a clear picture of dust is important for understand and eventually using computers to model where that dust will go now and in future climate scenarios," NASA research scientist Hongbin Yu said. —Catherine Garcia
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
-
Why are American conservatives clashing with Pope Leo?Talking Points Comments on immigration and abortion draw backlash
-
9 haunted hotels where things definitely go bump in the nightThe Week Recommends Don’t fear these spirited spots. Embrace them.
-
Saudi comedy fest exposes free speech schism in stand-upIN THE SPOTLIGHT The decision by some of stand-up’s biggest names to attend a festival in a nation infamous for its censorship has the comedy world picking sides and settling old scores
-
SpaceX breaks Starship losing streak in 10th testspeed read The Starship rocket's test flight was largely successful, deploying eight dummy satellites during its hour in space
-
Rabbits with 'horns' sighted across Coloradospeed read These creatures are infected with the 'mostly harmless' Shope papilloma virus
-
Lithium shows promise in Alzheimer's studySpeed Read Potential new treatments could use small amounts of the common metal
-
Scientists discover cause of massive sea star die-offSpeed Read A bacteria related to cholera has been found responsible for the deaths of more than 5 billion sea stars
-
'Thriving' ecosystem found 30,000 feet underseaSpeed Read Researchers discovered communities of creatures living in frigid, pitch-black waters under high pressure
-
New York plans first nuclear plant in 36 yearsSpeed Read The plant, to be constructed somewhere in upstate New York, will produce enough energy to power a million homes
-
Dehorning rhinos sharply cuts poaching, study findsSpeed Read The painless procedure may be an effective way to reduce the widespread poaching of rhinoceroses
-
Breakthrough gene-editing treatment saves babyspeed read KJ Muldoon was healed from a rare genetic condition
