Astronomers have found new evidence that a mysterious ninth planet may be hiding at the edge of the solar system - rewriting what we know about the cosmos again. An international team from Taiwan, ...

Star TOI-6894 is just like many in our galaxy, a small red dwarf, and only ~20% of the mass of our sun. Like many small stars, it is not expected to provide suitable conditions for the formation and ...

Planets turn retrograde when they appear to be moving backwards from our vantage point on Earth. When a particular planet goes retrograde, the themes of that planet will be impacted. Retrogrades get a ...

Astronomers have spotted a cosmic mismatch that has left them perplexed — a really big planet orbiting a really small star. The discovery defies current understanding of how planets form. The star is ...