New Gaia data reveals the motion of our galaxy in extravagant detail

ESA has made public a colossal data release from the agency’s Gaia observatory, which is currently engaged in a mission to survey 1 billion stars orbiting in the Milky Way. The data has already borne fruit, shedding light on the violent history of our … Continue reading New Gaia data reveals the motion of our galaxy in extravagant detail

Up to 300 million planets in the Milky Way may be habitable

Based on data from the Kepler Space Telescope and the Gaia mission, there may be up to 300 million habitable planets in the Milky Way galaxy, according to a team of scientists from the SETI Institute, NASA, and other international organizations. The re… Continue reading Up to 300 million planets in the Milky Way may be habitable

Is the Sun always this quiet or is it just a phase?

To get a sense of how “normal” the Sun may be, astronomers have compared the Sun to hundreds of similar stars. It turns out that it’s actually far less active than its peers – but is this a permanent personality, or is it just going through a phase?Con… Continue reading Is the Sun always this quiet or is it just a phase?

Virtual universes study suggests habitable Earth-like exoplanets are more common than we thought

Earth is – for now – the only place in the universe that we know hosts life, so it makes sense that astronomers focus the search for alien life on worlds that are the most like our own. But just how common are Earth-like planets orbiting at c… Continue reading Virtual universes study suggests habitable Earth-like exoplanets are more common than we thought

Milky Way still reeling from impact with "ghost galaxy"

Last year astronomers discovered a gigantic “ghost” galaxy, named Antlia 2, orbiting the Milky Way. Now, new research led by Rochester University has found that the bizarre galaxy may have been involved in a hit-and-run that left the Milky Wa… Continue reading Milky Way still reeling from impact with "ghost galaxy"

Tons of Stars Are Actually Solid ‘Crystal Spheres’ Hanging In Space

Turning into crystal spheres is the ultimate fate of billions of stars in our galaxy, including our own Sun. Continue reading Tons of Stars Are Actually Solid ‘Crystal Spheres’ Hanging In Space

The Plan to Seed Life on Alien Planets

The 50th anniversary of “Earthrise” is the perfect opportunity to think about sending Earth’s life to the stars. Continue reading The Plan to Seed Life on Alien Planets

The Plan to Seed Life on Alien Planets

The 50th anniversary of “Earthrise” is the perfect opportunity to think about sending Earth’s life to the stars. Continue reading The Plan to Seed Life on Alien Planets

Earth’s Core Is Squirting a ‘Jet Stream’ of Liquid Metal Under the Surface

Scientists found it by taking a satellite “x-ray” of the globe. Continue reading Earth’s Core Is Squirting a ‘Jet Stream’ of Liquid Metal Under the Surface