The Cosmic Companion
The Cosmic Companion has been delivering high-quality, factual scientific news and features since 2018. We also offer a weekly show, Astronomy News with The Cosmic Companion, featuring interviews with scientists around the globe.
Could Alien Microbes Live Off Products of Radioactive Decay?
Microbes living beneath the seafloor feed largely on the products of radioactive decay, aided by sediment of the seafloor, a new study reveals. This finding radically changes how we look at life processes in one of the largest ecosystems on our planet. It could also alter our views of how life may have evolved on Mars or other alien worlds.
Stunning New Images of Venus from the Parker Solar Probe
The Parker Solar Probe, designed for detailed study of the Sun, has another advantage - it is able to examine planets as it passes their orbits. As it refines its orbit around our Sun, Parker will pass Venus a total of seven times over its seven-year mission. The Parker probe uses the gravitational pull of planets to bend its path through the Solar System.
Do Water Worlds Fill the Milky Way?
Astronomers currently know of more than 4,400 exoplanets orbiting alien suns. Many of these may be water worlds, according to a new study examining how Earth and the rocky planets of our solar system first took shape.
Send in the Clones - Planets of the TRAPPIST-1 System Look a LOT Alike
Just 40 light years from Earth, the TRAPPIST-1 system of planets is home to the largest family of Earth-like worlds known to astronomers.
That Time Mars was Like Ireland
More than three billion years ago, Mars was home to vast oceans, and a new study shows this world may have once looked familiar - especially to the residents of Ireland.
The Exoplanet WASP-107b is a Real Super-Puff
The exoplanet WASP-107b may be as large as Jupiter, but this super-puff planet only contains one-tenth as much mass as the king of our Solar System. The density of this world is lower than what astronomers thought possible.
Meet the Extreme Exoplanet TOI-561 b
About 280 light years from Earth, a world of molten magma orbits one of the oldest stars in the galaxy. This exoplanet, 50 percent larger than the Earth, whips around its star at a breathtaking clip.
The 1E 0102.2-7219 Supernova Puzzle Seen by Hubble
Astronomers view 1E 0102.2–7219 - the remains of a supernova seen on Earth 1700 years ago - using the Hubble Space Telescope. Here's what they found.