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EarthSky Voices

Lifeforms can planet-hop on asteroids and survive

Researchers performed studies that show life forms could survive an asteroid impact and therefore hitch a ride into space on the resulting debris.

One of the biggest stars in the universe might be ready to explode

One of the biggest stars in the universe might be getting ready to explode. The star WOH G64 in a nearby galaxy showed a dramatic change in 2014.

Rubin Observatory launches real-time alert system

The Rubin Observatory is sending out real-time alerts of its discoveries. These alerts include objects such as newly discovered supernovas, asteroids and more.

What is orbital resonance? A dance between heavenly bodies

What is orbital resonance? It's a precise dance between heavenly bodies when their orbits line up, causing them to have specific synchronicities.

Supermassive black hole stunts star growth in other galaxies

A new study shows that a supermassive black hole at the center of a galaxy can slow star growth even in other galaxies that are millions of light-years away.
Earth

Ice-free oases on Snowball Earth sheltered early life

Scientists have found evidence for ice-free oases on Snowball Earth, which might have provided a lifeline for early complex life.

Too many satellites? Is Earth’s orbit headed for catastrophe?

Are there too many satellites? The growing number of satellites poses an under-regulated threat of disaster for spaceflight. But it's not too late to act!

Star dims for 9 months, likely due to giant ringed object

A star dims its light to less than 97% of its brightness for 9 months before re-brightening. How? Scientists think a giant, ringed object blocked its light.

Inside-out planetary system upends notions of formation

Scientists have found an inside-out planetary system. They did not expect to find a rocky planet out beyond the gaseous planets. How did it get there?

Sirius B: Now is the best time to see Sirius’ companion

Now is a great time to see Sirius' dim companion, Sirius B. The 2 are currently at their maximum separation as viewed from Earth.