A team of astronomers has identified a four-planet system orbiting the red dwarf star LHS 1903 that defies conventional expectations about how planets arrange themselves around their host stars. The ...

According to these calculations, Earth's total lifespan will be about 9.5 billion years.

For 15 years, one nearby exoplanet refused to reveal its secrets, its spectrum stubbornly flat, its atmosphere unreadable.

For nine months, astronomers observed an unusually long stellar eclipse. Research has revealed the eclipsing object to be a ...

Astronomers have reported one of the longest stellar dimming events ever recorded, with a Sun-like star fading by 97 percent for nearly 200 days. Astronomers believe one of the longest stellar dimming ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers ...

Four planets observed orbiting a red dwarf star; rocky outermost planet challenges formation theory, says scientists.