SIX planets will align in the evening sky this week in a rare cosmic phenomenon you’ll be able to see with your own eyes. Mercury, Venus, Neptune, Saturn, Uranus, and Jupiter will all appear ...
Four planets visible to the naked eye are lining up across the western sky after sunset this week, and the window to see them at their best is closing fast. Venus, Mercury, Saturn, and Jupiter form a ...
Why do some places wait 1,000 years to see a total solar eclipse while others get two in a decade? The surprising orbital ...
Arnie said, "Get your ass to Mars", but is it really a good idea? We asked the experts about our Martian future.
Would Earth’s growth change the composition of space?
Casimir cavities are mysterious spaces between microscopic metal plates in a vacuum. Areas of diminished energy between the plates cause them to push toward each other, as if trying to fill the ...