The solar wind is a constant flow of charged particles emitted by the Sun. It pushes against a comet’s tail, which is formed from dust and gas escaping its icy nucleus.
Look for the three stars that make up the distinctive formation of Orion's Belt — Alnitak, Alnilam and Mintaka — shining roughly 40 degrees above the southern horizon before sunrise. To estimate 10 ...
A pair of Sydney Ph.D. students helped sharpen the view of humanity's most powerful space observatory—without leaving Earth.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback