What is a quasar?

A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…

3D map of a million binary stars

A new atlas of nearby binary stars plots more than a million pairs and reveals a profusion of identical twins. Source: https://earthsky.org/space/3d-map-million-binary-stars…

Farthest known object in the solar system identified

Astronomers have confirmed that an object with the nickname of Farfarout is, to date, the farthest object we’ve seen in the solar system. Source: https://earthsky.org/space/farthest-known-object-solar-system-farfarout…

We heart the Earth and sky

This Valentine’s Day, we find so much to love in the many heart-shaped objects created by Mother Nature that can be found right here on Earth or all the way to the deepest reaches of the sky. Source: https://earthsky.org/space/heart-shaped-objects-in-nature-space-earth-valentines-day…

Celebrate the 91st anniversary of Pluto’s discovery

The I Heart Pluto Festival 2021 is a free event running from February 13 – 18 hosted by Lowell Observatory. Join in with nightly virtual events! Source: https://earthsky.org/space/i-heart-pluto-festival-2021-virtual-events-91st-anniversary…

Most distant object in our solar system spotted. But it’s not Planet Nine.

There’s a dwarf planet in our solar system, far beyond the orbit of Pluto, that swings so far away from the sun that from its perspective Earth and Saturn look like neighbors. Source: https://www.livescience.com/farfarout-planet-distance-record.html

Astronomers confirm orbit of most distant object ever observed in our solar system

A team of astronomers, including associate professor Chad Trujillo of Northern Arizona University’s Department of Astronomy and Planetary Science, have confirmed a planetoid that is almost four times farther from the Sun than Pluto, making it the most distant object ever observed in our solar system. The planetoid, which has been nicknamed “Farfarout,” was first detected in 2018, and the team…

What’s the difference between asteroids and comets?

Asteroids and comets are generally composed of different materials and reside in different locations of the solar system, while some rare objects display characteristics of both. Source: https://earthsky.org/astronomy-essentials/whats-the-difference-between-comets-and-asteroids…

NASA Spacecraft Discovers the Universe is Less Crowded Than We Thought

An anonymous reader shares a report: While we might think of space as a vast sea of blackness, all we have to do is look up at night to see that it’s punctuated by countless stars, galaxies and even a few planets visible to the naked eye. Scientists recently used data from NASA’s New Horizons mission out beyond Pluto to measure…