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EarthSky Voices

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!

EarthSky Voices

February 20, 2026

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.

EarthSky Voices

February 13, 2026

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?

EarthSky Voices

February 12, 2026

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.

EarthSky Voices

February 10, 2026

Is the whole universe just a simulation? Possibly!

Are we living in a simulation? Is Earth, and the whole universe, a simulation? It might be more likely than you think! Read more here.

EarthSky Voices

February 8, 2026

Dark matter, not a black hole, could power Milky Way’s heart

A new study suggests a dark matter core, and not a supermassive black hole, lies at the center of our Milky Way galaxy. Read more here.

EarthSky Voices

February 6, 2026

Did we see a black hole explode? If so, it could explain a lot

Did we just witness a black hole explode? Astronomers observed a strange particle collide with Earth that could have been the result of a black hole exploding.

EarthSky Voices

February 6, 2026

Space

New mission could create artificial solar eclipses in space

A team of researchers is working on a spacecraft mission that would use the moon to create artificial solar eclipses, aiding space weather monitoring.

EarthSky Voices

January 30, 2026

Event Horizon Telescope probes source of 3,000-light-year-long black hole jet

New observations with the Event Horizon Telescope trace the M87 black hole jet back to its likely source, linking to the famous ring of light at the jet’s base.

EarthSky Voices

January 30, 2026