Planetary systems form out of the remnant gas and dust of a primordial star. The material collapses into a protoplanetary disk around the young star, and the clumps that form within the disk eventually become planets, asteroids, ...
Space Exploration
Apr 12, 2021
0
19
A study of comet motions indicates that the solar system has a second alignment plane. Analytical investigation of the orbits of long-period comets shows that the aphelia of the comets, the point where they are farthest from ...
Astronomy
Sep 29, 2020
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12122
The US Air Force said Wednesday it would be sending its high-tech X-37B space drone back into orbit this month—the sixth trip for the reusable vehicle that maneuvers around the Earth on secretive missions.
Space Exploration
May 6, 2020
0
17
Scientists at the Department of Energy's SLAC National Accelerator Laboratory are building the world's largest digital camera for astronomy and astrophysics—a minivan-sized 3,200-megapixel "eye" of the future Large Synoptic ...
Astronomy
Jun 20, 2019
0
0
The first solar plane aimed at reaching the stratosphere made an initial low-altitude test flight over Switzerland Friday.
Energy & Green Tech
May 5, 2017
8
234
Just months after two Swiss pilots completed a historic round-the-world trip in a Sun-powered plane, another Swiss adventurer on Wednesday unveiled a solar plane aimed at reaching the stratosphere.
Energy & Green Tech
Dec 7, 2016
2
36
Circling the globe in an aircraft that used no fuel would be enough for some to rest on their laurels, but the pilots of Solar Impulse 2 on Monday spoke of their new project.
Energy & Green Tech
Oct 10, 2016
0
118
The world's first round-the-world flight to be powered solely by the sun's energy made history on Tuesday as it landed in Abu Dhabi, where it first took off on an epic 25,000-mile (40,000-kilometer) journey that began more ...
Energy & Green Tech
Jul 26, 2016
0
82
Solar Impulse 2 was on Monday approaching the end of its epic bid to become the first sun-powered airplane to circle the globe without a drop of fuel to promote renewable energy.
Energy & Green Tech
Jul 25, 2016
1
580
The final leg of an unprecedented world tour by a solar-powered plane was postponed Saturday due to the pilot's health, he said in a message on Twitter.
Energy & Green Tech
Jul 17, 2016
1
453
