Stargazers will be treated to a dazzling six-planet "alignment" this January.

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered two ...

A Neptune-sized planet ... TESS (the Transiting Exoplanet Survey Satellite), to discover the exoplanet (a planet outside our solar system), then made further observations with ground-based ...

HELENA — The planets are aligned. Six planets, Mars, Jupiter, Uranus, Neptune, Venus and Saturn can be seen in the night sky.

In case anyone missed the January planetary alignment, two more are expected to be seen in the night sky in February, with ...

Six planets are lining up in a row from our Earthly view of the cosmos, in a spectacle that'll be visible in January through ...

Starting at 12:30 p.m. ET (1730 GMT) on Saturday (Jan. 25), astrophysicist Gianluca Masi of the Virtual Telescope Project ...

The arrival of this planetoid is also thought to have caused a shakeup with Neptune's natural satellites, causing them to break up and coalesce to form new moons. It's also theorized that Triton ...

Referred to as a planetary parade or alignment, this celestial event occurs when multiple planets in our solar system appear ...