Six planets are linking up in the sky at the end of February, and most will be visible to the naked eye. It’s what’s known as ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form. Across our galaxy, astronomers routinely observe a ...

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

Mark your calendars for the last week of February, because one of the coolest celestial events is coming up where six planets will be visible in the night sky at the same time. This phenomenon, known ...

NORFOLK, Va. — This week will bring a celestial parade, full planetary alignment. The alignment will involve Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune appearing in an arcing line from ...

Astronomers have uncovered a distant planetary system that flips a long-standing rule of planet formation on its head. Around the small red dwarf star LHS 1903, scientists expected to find rocky ...

In “Citizen Science in Astronomy (Part 7),” SETI Institute astronomers Dr. Franck Marchis and Dr. Lauren Sgro highlight two rare and compelling discoveries and the crucial role of citizen scientists ...

NORFOLK, Va. — Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to ...

In Star Wars, Anakin Skywalker burned alive on the shores of a roiling lava planet called Mustafar, fueling his tumultuous transition into Darth Vader. Now, astronomers have found an atmosphere on a ...