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On a small dwarf planet called Makemake, astronomers have seen signs of surprising temperature changes. These could indicate ...

Astronomers have discovered an Earth-like planet orbiting a white dwarf 4,000 light years away, raising questions about Earth ...

“One of the most intriguing questions right now in exoplanet astronomy is: Can rocky planets orbiting M-dwarf stars maintain atmospheres that ... Additionally, while its orbital period is only 6.1 ...

Astronomers from the University of Southern Queensland (UniSQ) in Australia and elsewhere have reinvestigated a planetary system known as HD 28185, known to contain a gaseous giant exoplanet and an ...

In 2006, the International Astronomical Union (IAU) voted on the definition of a planet. Famously, Pluto no longer met the criteria and was demoted to a dwarf planet. Things have been a bit of a ...

In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One year on the distant ice planet is 248 Earth years, and one day is 153 ...

A distant white dwarf hosts an Earth-like planet in an orbit that might be similar to Earth’s if it survives the Sun’s red giant phase.