TESS tagged posts

Using observations from NASA’s Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a trio of hot worlds larger than Earth orbiting a much younger version of our Sun called TOI 451. The system resides in the recently discovered Pisces-Eridanus stream, a collection of stars less than 3% the age of our solar system that stretches across one-third of the sky.

The planets were discovered in TESS images taken between October and December 2018...

A unique six-planet system, 200 light years away from Earth, has been observed around the star TOI-178 by an international research team including scientists from the University of St Andrews.

The observations were made using the CHEOPS (Characterising ExOPlanets Satellite) space telescope that was launched in December 2019 with the important goal of precisely measuring the size of known planets. However, as this work finds, the spacecraft has the exciting potential to discover new planets.

CHEOPS is a joint mission by the European Space Agency (ESA) and Switzerland, under the aegis of the University of Bern in collaboration with the University of Geneva and the University of St Andrews.

The team had believed there ...

During a typical year, over a million people visit Yellowstone National Park, where the Old Faithful geyser regularly blasts a jet of boiling water high in the air. Now, an international team of astronomers has discovered a cosmic equivalent, a distant galaxy that erupts roughly every 114 days.

Using data from facilities including NASA’s Neil Gehrels Swift Observatory and Transiting Exopla...

A University of Arizona-led research team has found bands and stripes on the brown dwarf closest to Earth, hinting at the processes churning the brown dwarf’s atmosphere from within.

Brown dwarfs are mysterious celestial objects that are not quite stars and not quite planets. They are about the size of Jupiter but typically dozens of times more massive...