Videos from Afternoon Astronomy Coffee

Every week, in universities and institutions around the world, astronomers meet over coffee to discuss the latest research in space and astronomy. This is your chance to join in on Thursdays, 3pm ET.

Found 46 videos in "Afternoon Astronomy Coffee" category

Why Are Distant Galaxies Aligned?

29th Jun, 2017 - 3.4k views

The Hubble Space Telescope has observed massive, ancient galaxies in alignment in the distant universe. What is the significance of this alignment and why do these distant galaxies do that? We think that galaxies are scattered in the universe wit

WASP-121b - A Scorching Hot Atmosphere

24th Aug, 2017 - 1.7k views

What is the atmosphere of the hot-Jupiter Exoplanet Wasp-121b like? We know that for planets close to their parent stars, the temperature is very high and can heat and even dissipate atmospheres. For example, if the planetary atmosphere is retain

Voyager! 40 years of Solar System Discoveries

12th Oct, 2017 - 2.3k views

This hangout celebrates 40 Years of Voyager! Voyager 1 and 2 Spacecraft are twin spacecraft launched into the Solar System 40 years ago to fly by Jupiter, Saturn and beyond. The amazing discoveries from their travels include 23 moons around the gi

Unusual Hot Jupiters

9th Feb, 2017 - 3.9k views

Hot Jupiters are gas giant planets, somewhat similar to Saturn or Jupiter, but instead, they orbit very close to their host stars with orbital periods of less than 10 days. Because these planets are very near their parent star, they are heated to ext

The Solar Corona: What Shape wilt have during the 2017 Eclipse?

10th Aug, 2017 - 1.5k views

In the United States, there will be an opportunity on August 21st 2017 to see a total or partial solar eclipse. Eclipses offer a rare opportunity to see the thin atmosphere around the Sun, known as the Corona. The moon moves in front of the sun f

The Search for Planet 9: So, where is it? (audio remix)

11th May, 2018 - 3.1k views

Astronomers believe there is an undiscovered super-Earth Sized planet lurking in our outer solar system. If it exists, then astronomers think it would have an estimated mass of ten Earths. So, where is it?

The Nearest Earth-sized Planet Discovered Around Proxima Centauri

8th Sep, 2016 - 6.2k views

Live chat at Also ask questions here: ESO Press Release: Proxima Centauri, the closest star to the Sun, is about 4 light-years from the Solar System.

The Freezing of Io's Atmosphere During Eclipses of the Sun by Jupiter

22nd Sep, 2016 - 3.2k views

Io is a moon of Jupiter which is volcanically active and, in fact, is the most active object in the solar system. This strong volcanism is stimulated by the gravitational interaction between Io and Jupiter. Not only that, Io’s volcanoes emit plumes

The Faintest Galaxies: What Are They?

6th Mar, 2018 - 2.7k views

We live in a time when searching for and finding the faintest galaxies in the universe is possible. So, where are they?

The Dark Energy Survey: More Than Just Dark Energy

13th Jul, 2017 - 2.2k views

The Dark Energy Survey is looking at 5000 square degrees of sky in the southern hemisphere for 525 nights in an attempt to understand mysterious Dark Energy. But that's not all the collaboration is doing. Members of the Dark Energy Survey are usin

The Curiosity of Martian Mud Cracks

23rd Feb, 2017 - 2.8k views

Here is a link to the press release we're talking about today: NASA's Curiosity rover certainly has uncovered unusual features of Mars. Recently the rover was used by scientists to take a closer loo

The Cosmic Optical Background: New Horizons Probes the Universe

27th Apr, 2017 - 2.2k views

Researchers have cleverly used data from the New Horizons mission to look at the light from distant galaxies. The universe is filled with galaxies light up the cosmos, but too faint to see with the naked eye. Can we measure it? How bright is it?