The Starship spacecraft is seen towering over onlookers with a clear sky backdrop.

SpaceX Starship as a trash collector in Earth orbit?

SpaceX Starship’s many tasks may include launching humans into space, carrying satellites into orbit and — perhaps — removing troublesome pieces of space debris.

2020 Antarctic ozone hole among largest, deepest in recent years

This year’s ozone hole covers most of the Antarctic continent and is among the largest and deepest in recent years.

Here are 3 amazing feats of spiders

Halloween time is spider time. Three amazing spider skills you might not have known about.

Composite satellite image of Earth's western hemisphere (North and South America) at night.

Paul Bogard on why we need darkness

Light at night may be a sign of life on Earth, but the darkness will proclaim our true intelligence. Check out this video on why we need darkness, from Paul Bogard.

NASA Astronaut Peggy Whitson is seen floating in the ISS while Earth's ocean is covered by clouds just outside a window's view.

What astronauts think about life away from Earth

Axiom is an aerospace company making new possibilities accessible to humanity. Watch as astronauts retell their experience launching from Earth and living in space.

Top 10 things to know about asteroid Bennu

Take a video tour of asteroid Bennu’s remarkable terrain and read a list of 10 cool things scientists know about this pristine remnant from the early days of our solar system.

Blue Origin’s New Shepard completed its 7th launch and landing this week

Blue Origin’s New Shepard rocket successfully launched an uncrewed test flight on October 13, with both its capsule and booster later executing a flawless landing.

Worsening rifts and fractures spotted at 2 important Antarctic glaciers

Satellite imagery has revealed that 2 of the fastest-changing glaciers in Antarctica – Pine Island and Thwaites – are fracturing and weakening faster than ever, a step towards the glaciers’ disintegrating and causing sea levels to rise dramatically.

The James Webb Space Telescope displays its large and striking yellow sunshield with foldable structures surrounding it.

James Webb Space Telescope passes environmental testing

The James Webb Space Telescope – successor to the Hubble – just passed a series of environmental testing trials, designed to simulate the rigors of its anticipated launch in 2021.

Inside the secret lives of synchronous fireflies

In the Smoky Mountains, thousands of fireflies flash in unison. Researchers want to know how.

Contour lines around four bluish-colored patches.

Radar reveals 3 more subsurface polar lakes on Mars

Scientists with the European Space Agency say that the Mars Express orbiter has found evidence of three more salty lakes below Mars’ south pole. The discovery comes two years after the first lake was detected in 2018.

SpaceX launched 60 more Starlink satellites this week

After 2 weeks of scrubs, SpaceX’s Falcon 9 rocket blasted off October 6, 2020, carrying 60 more Starlink satellites to orbit. The rocket successfully landed at sea 9 minutes later. Video of the launch and landing here, plus steps taken to reduce the bright satellites’ effect on astronomy.

Green streak with large glowing head at lower end, going through clouds.

Bright fireball widely seen over northeastern Mexico

A fireball is an especially bright meteor from space. It can start out icy and burn up entirely in our atmosphere, or rocky … in which case a meteorite sometimes falls to Earth’s surface. This bright fireball blazed over northeastern Mexico on Tuesday, October 6, 2020.

Detailed new image of famous stellar nursery

Gorgeous, detailed image of the Carina Nebula, a star nursery approximately 8,500 light-years away, as observed with the Gemini South telescope in Chile.

2020 Arctic sea ice minimum 2nd lowest on record

On September 15, 2020, Arctic sea ice reached its annual minimum extent, the 2nd-lowest on record. The Arctic region in general is warming 3 times faster than the rest of the planet.

Advice from an astronaut

For anyone who wants to grow up and be an astronaut …. here’s a lovely video with advice from ESA astronaut Luca Parmitano.

Two hemispheres, one on left with yellow patches and arc-shaped splashes, one on right very plain.

Solar Cycle 25 is here

The sun has passed from one of its 11-year activity cycles into another. Scientists predict the new cycle – Solar Cycle 25 – will be about as calm as the previous one.

Amazon River from space

Video tour – via satellite – of the Amazon River meandering through the Amazon rainforest in South America.

Comet in the sky above a lake, also reflecting in the lake.

What are comets?

Comets are loosely packed balls of ice and dust orbiting our sun, that sometimes become visible in Earth’s skies. A comet’s tail may stretch across millions of miles of space.

Artwork showing Earth from space, the Gaia spacecraft, and a radio telescope listening for signs of extraterrestrial intelligence.

A breakthrough in the search for extraterrestrial intelligence

The researchers called their new analytical technique “a milestone in SETI.” One researcher commented: “We now know that fewer than one in 1,600 stars closer than about 330 light years host transmitters just a few times more powerful than the strongest radar we have here on Earth.”