Alien stars

First Radio Signal From an Exoplanet Detected By Astronomers

An international team of scientists has discovered the first radio signal from a planet beyond our solar system, coming from an exoplanet system 51 light-years away. The previous article has been updated. The researchers discovered emission burst…

The Oldest Star In Universe Is Older Than The Universe Itself

HD 140283 is a subgiant star estimated to be 14.46 billion years old. That may raise an eyebrow or two among those who recall the universe's estimated age of 13.77 billion years. This star, commonly referred to as the Methuselah star, seems to be …

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