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Scientists have found what appear to be rogue planets hidden in old survey data. Their results are starting to define the poorly-understood rogue planet population. In the near future, the Nancy Grace ...

Astronomers have finally pinned down both the mass and distance of a solitary “rogue” planet, a world that drifts through space without the warmth or light of a parent star. The object, a Saturn-sized ...

Photometric data and fitted light curve of the event AT2021uey. Credit: Astronomy & Astrophysics (2025). DOI: 10.1051/0004-6361/202554236 Scientists from Vilnius University (VU) Faculty of Physics, ...

How common are super-Earth exoplanets throughout the universe? This is what a recent study published in Science hopes to address as an international team of more than 60 researchers used a well-known ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift alone through the Milky Way. Astronomers call these objects free-floating ...

NASA’s Nancy Grace Roman Space Telescope will create enormous cosmic panoramas, helping us answer questions about the evolution of our universe. Astronomers also expect the mission to find thousands ...

Gravitational microlensing is a transient but powerful phenomenon that occurs when a foreground mass – such as a star or a planetary system – temporarily magnifies the light from a more distant ...

An international team of astronomers led by David Bennett of the University of Notre Dame has discovered an extra-solar planet of about three Earth masses orbiting a star with a mass so low that its ...

Artist's impression of a microlensing event caused by a black hole observed from Earth toward the Large Magellanic Cloud. The light of a background star located in the LMC is bent by a putative ...