Voyager 2 enters interstellar space

NASA announced Dec. 10 that for the 2nd time in history, a human-made object has reached the space between the stars.

Another El Niño on the horizon?

The World Meteorological Organization has said there’s a “75–80% chance” of a fully-fledged El Niño event by February, 2019. Click in for a good video from ESA describing El Niños and their global effects.

Listen to the Martian wind

NASA’s InSight lander has captured the 1st-ever sounds of Martian winds.

Watch geckos race on water!

Geckos are renowned for their acrobatic feats on land and in the air. Turns out they can also run on water.

Over 100 new exoplanets from Kepler and Gaia

At least 18 of the new planets are less than 2 times larger than the Earth, and are likely to have rocky compositions with atmospheres comparable to Earth’s.

A measurement of all the starlight ever produced

How much starlight has our universe produced? According to a new study, stars have radiated 4×1084 photons since the start of the universe 13.7 billion years ago. That’s the number 4 with 84 zeros behind it.

Astronomers’ 1st close-up look near a supermassive black hole

For the 1st time, researchers have been able to observe the motion of gas clouds around a central supermassive black hole. This particular black hole powers the famous quasar 3C 273.

Take 2 trips around Earth, from space

It’s been 20 years since the launch of the International Space Station. To celebrate, enjoy this video timelapse of 2 trips around Earth, via ISS astronaut Alexander Gerst. Longest-yet timelapse from space!

Listening to the patterns of the universe

Astronomer Wanda Díaz Merced – who began losing her sight in her 20s – presented one of TED’s most-watched astronomy videos. Here’s how turning a telescope’s digital data into sound can help reveal hidden patterns.

Huge 4,000-year-old termite mounds visible via satellite

Researchers have found a vast array of regularly-spaced, still-inhabited termite mounds in northeastern Brazil covering an area the size of Great Britain.

Merging galaxies fuel mega black holes

It hasn’t been easy for astronomers to peer into the cores of merging galaxies. Dust obscures the view. Now, new research has given astronomers a better look.

Narwhal adopted by belugas

Scientists are trying to solve the mystery of why a narwhal was adopted by a group of beluga whales in Canada’s St. Lawrence River.

Huge meteorite crater discovered under Greenland ice

Researchers have identified a large meteorite impact crater hiding under the Greenland ice. The enormous crater – bigger than Paris – appears to be result of meteor strike just 12,000 years ago.

What is space weather?

Activity on the sun’s surface creates the conditions known as space weather, that can, at its worst, damage Earth satellites and cause electrical blackouts.

Largest U.S. indoor ocean exhibit has good news

How natural can seawater be, in a large inland aquarium? Researchers at Georgia Aquarium in Atlanta were happy to learn that bacteria in their indoor exhibit mimicked those in the world’s oceans.

2018 ozone hole slightly above average

The ozone hole that forms in the upper atmosphere over Antarctica each September was slightly above average size in 2018, according to NOAA and NASA scientists.

Dusk for Dawn mission to asteroids

NASA’s Dawn spacecraft has gone silent. The mission to explore the 2 largest bodies in the asteroid belt, Vesta and Ceres, is at an end.

Zoom in on the Ghost Nebula

Nebula IC 63 – in the direction of our constellation Cassiopeia – is slowly dissipating under the influence of ionizing ultraviolet radiation from a hot, luminous variable star known as Gamma Cas.

How 600,000 pounds of dead salmon nourished Alaskan trees

For 20 years, researchers counting dead salmon tossed them on the side of a shallow creek. The result, it turns out, was healthier, faster-growing trees. You’ll enjoy this video.

Large and Small Magellanic Clouds collided!

Star motions in the Small Magellanic Cloud – as revealed by the Gaia space observatory – confirm that this small satellite galaxy of our Milky Way collided in the past with its larger neighbor.