Sofia Jamora by Veronica Sams
Victoria Germyn
From space, we can see a swirling brown mass making its way across the Atlantic – dust from the Sahara Desert – the largest hot desert in the world. It’s a normal phenomenon. Every year, winds carry millions of tons of dust from North Africa, usually during spring and summer in the Northern Hemisphere.
June 2020 has seen a massive plume of dust crossing the ocean. It’s so large it’s visible from one million miles away in space.
Dust clouds this large can affect air quality in regions where the dust arrives. The particles can also scatter the Sun’s light, making sunrises and sunsets more vibrant.
Dust particles in the air are also known as aerosols. We can measure aerosols, including dust, sea salt and smoke, from satellites and also use computer models to study how they move with the wind.
Following the transport of dust from space shows us how one of the driest places on Earth plays a role in fertilizing the Amazon rainforest. There are minerals in Saharan dust, like phosphorous, that exist in commercial fertilizers, helping seed the rainforest.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Jubilo de colores
#oceanPacific #beach
Targeted for launch to the Red Planet in July 2020, our Mars 2020 Perseverance rover will search for signs of ancient life. Mission engineer Lauren DuCharme and astrobiologist Sarah Stewart Johnson will be taking your questions in an Answer Time session on Friday, July 17 from noon to 1pm ET here on our Tumblr! Make sure to ask your question now by visiting http://nasa.tumblr.com/ask
Lauren DuCharme is a systems engineer at NASA’s Jet Propulsion Laboratory (JPL) in Southern California, where she’s working on the launch and cruise of the Perseverance rover. Lauren got her start at JPL as an intern. Professor Sarah Stewart Johnson is an astrobiologist at Georgetown University in Washington. Her research focuses on detecting biosignatures, or traces of life, in planetary environments.
The name Perseverance was chosen from among the 28,000 essays submitted during the “Name the Rover” contest. Seventh-grader Alex Mather wrote in his winning essay, “We are a species of explorers, and we will meet many setbacks on the way to Mars. However, we can persevere. We, not as a nation but as humans, will not give up.”
Perseverance will land in Jezero Crater, a 28-mile-wide (45-kilometer-wide) crater that scientists believe was once filled with water.
Perseverance carries instruments and technology that will pave the way for future human missions to the Moon and Mars. It is also carrying 23 cameras and two microphones to the Red Planet — the most ever flown in the history of deep-space exploration.
Perseverance is the first leg of a round trip to Mars. It will be the first rover to bring a sample caching system to Mars that will package promising samples for return to Earth by a future mission.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
#asian baby