RECENT ARTICLES
3 Questions: The first asteroid sample returned to Earth
On Sunday morning, a capsule the size of a mini-fridge dropped from the skies over western Utah, carrying a first-of-its-kind package: about 250 grams of dirt and dust plucked from the surface of an asteroid. As a candy-striped parachute billowed open to slow its freefall, the capsule plummeted down to the sand, slightly ahead of schedule. The special delivery came courtesy of OSIRIS-REx, the first NASA mission to travel to an asteroid and return a sample of its contents to Earth. Launched in 2016, the mission’s target was Bennu, a “near-Earth” asteroid that is thought to have formed...…On Sunday morning, a capsule the size of a mini-fridge dropped from the skies over western Utah, carrying a first-of-its-kind package: about 250 grams of dirt and dust plucked from the surface of an asteroid. As a candy-striped parachute billowed open to slow its freefall, the capsule plummeted down to the sand, slightly ahead of schedule. The special delivery came courtesy of OSIRIS-REx, the first NASA mission to travel to an asteroid and return a sample of its contents to Earth. Launched in 2016, the mission’s target was Bennu, a “near-Earth” asteroid that is thought to have formed...WW…
Desalination system could produce freshwater that is cheaper than tap water
Engineers at MIT and in China are aiming to turn seawater into drinking water with a completely passive device that is inspired by the ocean, and powered by the sun. In a paper appearing today in the journal Joule, the team outlines the design for a new solar desalination system that takes in saltwater and heats it with natural sunlight. The configuration of the device allows water to circulate in swirling eddies, in a manner similar to the much larger “thermohaline” circulation of the ocean. This circulation, combined with the sun’s heat, drives water to evaporate, leaving salt behind....…Engineers at MIT and in China are aiming to turn seawater into drinking water with a completely passive device that is inspired by the ocean, and powered by the sun. In a paper appearing today in the journal Joule, the team outlines the design for a new solar desalination system that takes in saltwater and heats it with natural sunlight. The configuration of the device allows water to circulate in swirling eddies, in a manner similar to the much larger “thermohaline” circulation of the ocean. This circulation, combined with the sun’s heat, drives water to evaporate, leaving salt behind....WW…
How to deflect an asteroid
Explore:Explore:Explore:How to deflect an asteroidAbbyAbazorius617-253-2709MIT News OfficeOn April 13, 2029, an icy chunk of space rock, wider than the Eiffel Tower is tall, will streak by Earth at 30 kilometers per second, grazing the planet’s sphere of geostationary satellites. It will be the closest approach by one of the largest asteroids crossing Earth’s orbit in the next decade.Observations of the asteroid, known as 99942 Apophis, for the Egyptian god of chaos, once suggested that its 2029 flyby would take it through a gravitational keyhole — a location in Earth’s gravity field that...…Explore:Explore:Explore:How to deflect an asteroidAbbyAbazorius617-253-2709MIT News OfficeOn April 13, 2029, an icy chunk of space rock, wider than the Eiffel Tower is tall, will streak by Earth at 30 kilometers per second, grazing the planet’s sphere of geostationary satellites. It will be the closest approach by one of the largest asteroids crossing Earth’s orbit in the next decade.Observations of the asteroid, known as 99942 Apophis, for the Egyptian god of chaos, once suggested that its 2029 flyby would take it through a gravitational keyhole — a location in Earth’s gravity field that...WW…
- Total 3 items
- 1