New research suggests that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three ...

NASA's Artemis campaign is rapidly advancing the development of Gateway, a space station that will orbit the Moon and serve ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye. Here's what to know.

Interestingly, they'll always appear along the same arc in the night sky. That path is called the ecliptic, and it exists because all planets in our solar system orbit around the sun on roughly the ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

Stargazers are in for a treat this week as a planetary parade is set to take place - just a month after the last planetary ...

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 weird and wonderful worlds across 4,300 planetary systems have been ...

In research highlighted in a new paper, published today in The Astrophysical Journal, Scientia Senior Lecturer Ben Montet and PhD candidate Brendan McKee analysed changes in the timing of a known ...

Four small suitcase-sized spacecraft, designed and built by Southwest Research Institute headquartered in San Antonio, are ...

Venus, Mars, Jupiter, Saturn, Uranus, and Neptune were already visible in the night sky after dusk this month, but Mercury joined them on Feb. 28. While it's common to see a few planets line up in the ...

The planets in our solar system orbit the sun essentially along the same line across the sky in a plane called the ecliptic. For that reason, planets in our Earthly sky always appear somewhere ...