subscribe

Astronomers glimpse Comet Wirtanen’s telltale spin

This comet is due to pass closest to our sun and Earth in December 2018. It’s already the brightest comet in the night sky, visible to astronomers with telescopes and binoculars. A new image shows the comet’s rotation!

Why is Venus so bright?

Venus is the 3rd brightest object in the sky, after the sun and moon. Why?

InSight lander sets down safely on Mars

There’s a new robot on Mars’ surface, the InSight spacecraft, designed to study the planet’s interior. It set down safely Monday after nearly 7 months of flight from Earth and a 7-minute nail-biting plummet through Mars’ thin atmosphere.

Hear Opportunity’s 5,000th sunrise on Mars

Scientists used data sonification to transform a photo of the now-silent Opportunity rover’s 5,000th sunrise on Mars into a piece of music.

Landing on Mars is still hard

There’s a reason space engineers describe landing on Mars as “7 minutes of terror.”

How will NASA know when InSight touches down?

Signals from Mars will take 8 minutes to travel to Earth on Monday. By the time we hear that InSight has reached the top of Mars’ atmosphere, the lander will have already touched down safely … or crashed.

How to watch the InSight Mars landing November 26

On November 26, 2018, NASA’s InSight lander will make its daring descent to Mars’ surface. NASA engineers hope to broadcast word of a successful touchdown at 20:00 UTC (3 p.m. EST), with live landing commentary starting about an hour before.

Here’s where InSight will touch down on Monday

“If you were a Martian coming to explore Earth’s interior, it wouldn’t matter if you put down in the middle of Kansas or the beaches of Oahu … The beauty of this mission is happening below the surface.”

Why do stars twinkle, but planets don’t?

Seen from space, stars and planets both shine steadily, But seen from Earth, stars twinkle while planets (usually) don’t. Here’s why.

Today in science: Edwin Hubble and the expanding universe

Last month, the International Astronomical Union – same organization that demoted Pluto to dwarf planet status – voted to rename Hubble’s law as the Hubble–Lemaître law. Will astronomers use the new name?