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21 hours ago · The discovered exoplanet's system is composed of a white dwarf about half the mass of the sun, a so-called "brown dwarf" sometimes described as a failed star, and an Earth-size world.
1 day ago · A handful of gaseous planets have been found orbiting white dwarfs, but they either had more distant orbits or had migrated inward after the red giant phase. But if Dr. Zhang’s detection is ...
1 day ago · A 2020 microlensing event was caused by a planetary system with an Earth-like planet and brown dwarf. The star type was uncertain. The team has determined that the star is a white dwarf, a system ...
1 day ago · A newly discovered Earth-sized world orbiting a dead white dwarf star gives scientists a hint of what the solar system will look like in billions of years if our planet can escape destruction.
1 day ago · Astronomers have discovered a distant white dwarf with an Earth-like planet in an orbit just beyond where Mars is in our solar system. Earth could end up in such an orbit circling a white dwarf in about 8 billion years, if, like this exoplanet, it can survive the sun's red giant phase on its way to becoming a white dwarf.
4 days ago · A few billion years from now, the Sun will evolve into a red giant and then into a white dwarf, devouring the innermost planets and millions of asteroids in the process. With the Exoasteroids project, you’ll search for white dwarfs that are growing brighter or dimmer. Such white dwarfs may be remnants of planetary systems still actively ...
1 day ago · Modelling of the densely sampled light curve subsequently revealed a three-body lens system consisting of a low-mass-ratio planet (q ≈ 10 −5) and a brown dwarf (BD) companion orbiting a ...
