Enjoying EarthSky? Subscribe.

0 subscribers and counting ...

Ross 128 b and the search for Earth-like exoplanets

Only 11 light-years away, Ross 128 b is the 2nd-closest-known rocky exoplanet. It appears to be a temperate world, with similarities to Earth. Here’s a recent study scrutinizing this fascinating world.

How scientists know sea level rise is accelerating

Sea levels have been rising since the end of the last Ice Age. But the rate of the rise is accelerating, as Earth’s global climate warms. A new video from ESA explains how scientists know.

What’s the recipe for a habitable exoplanet?

What combination of ingredients produce a planet that can support life? NASA has just awarded $7.7 million to Rice University for a new 5-year research program, in hopes of answering that question.

Shine on, Harvest Moon

The Harvest Moon comes on September 24 for the Americas and September 25 for most of the rest of the world.

More From Latest

MarCO: Tiny cube satellites headed to Mars

These boxy satellites, small enough to fit in a backpack, are currently trailing thousands of miles behind the InSight spacecraft on their way to Mars.

It’s Mid-Autumn Festival time in Asia

In China and other Asian countries, it’s sometimes called the Moon Festival in honor of the upcoming full moon.

Why is Earth’s spin axis drifting?

As Earth rotates, its spin axis — an imaginary line that passes through the North and South Poles — drifts and wobbles. Scientists now have, for the 1st time, identified 3 reasons why.

Birds flying south. How many will return?

Contrary to popular thought, birds wintering in the tropics survive the winter better than birds wintering in the U.S. That’s despite the fact that tropical wintering birds migrate 3 to 4 times farther.

Which bird migrates the farthest?

Over its lifetime of about 25 years, an Arctic tern can fly nearly 3 times the distance from the Earth to the moon.

Pablo Neruda and cosmic beauty

Neruda wrote: “Every day you play with the light of the universe.”

JAXA confirms 2 rovers landed successfully on asteroid Ryugu

Japan’s space agency JAXA said the pair of tiny robots – released by the Hayabusa2 space probe – touched down Saturday on asteroid Ryugu. See the images here.

All you need to know: September equinox

We have an equinox coming up on September 23 at 01:54 UTC. That’s September 22 for clocks in North America. Details here. Happy autumn (or spring)!

A new way to launch rockets without fuel?

Conventional rockets – with their onboard fuel – are expensive and dangerous. A new “quantized inertia” concept might make rocket launches cheaper and safer. The concept has just received $1.3 million in new funding.