In general, the best time to view the planet parade will be after Jan. 21, and before Feb. 21. The very best nights will be ...

The orbits of the four inner planets (Mercury, Venus, Earth, Mars) are fully visible, drawn as teal concentric circles around the bright ball of the sun at the center.

NASA’s Parker Solar Probe made a historic attempt to circle the sun at 6:53 a.m. EST on Tuesday, Christmas Eve, which, if ...

All the planets in our solar system orbit around the sun. At certain points during these orbits, the Earth finds itself directly between the Sun and another planet. Tonight, it will be Jupiter's ...

Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.