After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.
Seven planets are on display in the night sky at the end of February, but some will be harder to spot than others. Here’s ...
For example, you’ll need binoculars or a small telescope to see Uranus and Neptune—so, while the seven planets will be there, ...
Mercury, Venus, Mars, Jupiter, Saturn, Neptune and Uranus could be visible, but not all can be seen by the naked eye.
For decades, scientists have puzzled over traces of primordial helium—a rare isotope known as ³He—escaping from volcanic ...
According to NASA, multi-planet lineups are visible "every few years," but a seven-planet alignment is particularly uncommon, as each planet's orbit varies, with some moving more quickly and Mercury, ...
Seven planets will line up for a rare "planetary parade" today (Feb. 28) and you can watch it live online, beginning at 12:00 p.m. ET (1700 GMT).
A modest NASA space telescope with grand ambitions will soon launch into an orbit around Earth. Here's why scientists are ...