Pluto's unusual eccentricity and tilt is likely due to its interactions with neighboring Neptune and other giant planets, said Renu Malhotra, a planetary scientist at the University of Arizona who has ...

We could be overlooking an entire population of asteroids that pose a threat to Earth on the very simple basis that they're ...

These so-called Venus co-orbital asteroids are currently undetected because of their alignment in the sky but could one day ...

This artist’s impression shows a Jupiter-like exoplanet that is on its way to becoming a hot Jupiter — a large, Jupiter-like exoplanet that orbits very close to its star. NOIRLab/NSF/AURA/J. da Silva ...

NASA’s asteroid impact changed Dimorphos’s orbit, but another strange shift followed. Scientists are still searching for ...

Venus probably shares its orbit with numerous asteroids with unstable orbits, and these could represent one of the most ...

Alpha Centauri, also known as Alpha Centauri A, is a three-star system. The brightest star, Alpha Centauri A, is quite similar to the Sun. According to an article published on the website of the ...

An international study led by researchers at São Paulo State University (UNESP) in Brazil has identified a little-known but potentially significant threat: Asteroids that share Venus's orbit and may ...

Growing evidence suggests that a subsurface ocean lurks beneath the icy surface of Uranus' moon Ariel, but new research, ...

Ariel, one of Uranus' icy moons, may once have concealed a vast ocean more than 100 miles (170 kilometers) deep beneath its ...

Changes in Earth's orbit that favored hotter conditions may have helped trigger a rapid global warming event 56 million years ago. Researchers found the shape of Earth's orbit, or eccentricity, and ...

Earth is at aphelion, the furthest point from the Sun in its not-quite-circular orbit, on July 4, 2022. On January 4 we'll be 3.1 million miles closer at perihelion. As temperatures rise into the 90s, ...