Posts by 

Dave Adalian

Enormous BlueBird satellites unfurled in low Earth orbit

BlueBird satellites, the largest communications satellites ever, opened their antennae this week. Astronomers believe they will further degrade the night sky.

Monday’s livestream: Extreme weather and climate change with Davide Faranda

Watch our replay about climate change and extreme weather with climatologist Davide Faranda, an expert on cold spells, heatwaves and severe thunderstorms.

LIVE: SpaceX Starship Test Flight No. 5 Watch Party!

Starship is the world’s most powerful rocket. Want to see it take to the sky? Join our watch party at 7 a.m. CT (12:00 UTC) on Sunday, October 13.

Are the Andromeda and Milky Way galaxies already merging?

Researchers studying the fastest stars in the Milky Way galaxy believe some of them may come from the nearby Andromeda galaxy.

Mars mission to send Blue and Gold satellites to red planet

The Mars ESCAPADE mission will study the red planet's magnetosphere using a pair of small satellites. ESCAPADE will launch no earlier than spring 2025.

LIVE MONDAY: Space junk with Jonathan McDowell

Astrophysicist Jonathan McDowell will discuss humans' unexpected impacts on space LIVE with EarthSky at 12:15 p.m. (17:15 UTC) on Monday, September 16. Join us!

A buddy for Betelgeuse? Does this mean no supernova?

A recently-published study suggests the red giant star Betelgeuse may have a sun-size companion which might affect the star's brightness and variability.

Ailing Starliner spacecraft returns to Earth sans crew

Boeing's Starliner capsule landed safely - without its crew - on Friday night. The 2 astronauts are still stuck aboard the ISS, slated to return in February.

Dark matter hunters explore the strangest of places

Recent research suggests evidence for dark matter is - or might be found - in extreme locations. Researchers are looking in distant galaxies and here on Earth.

LIVE on Monday: Climate chaos with Daniel Swain

Climatologist Daniel Swain will discuss climate change and extreme weather LIVE with EarthSky at 12:15 p.m. (17:15 UTC) on Monday, July 29. Join us!