Videos
Conjunction of Venus & Jupiter
A brief timelapse of the conjunction of Venus and Jupiter on March 3, 2023, as they come into view in the London dusk. The two planets are less than one degree part in the sky. 🤩
Videos
Videos
Videos
Science From Home – Nuclear Pasta Recipe
Inside neutron stars, matter ends up in weird shapes known as nuclear pasta. And I've got a real recipe to make the same pasta for a quick homemade lunch!
Videos
What Does The Milky Way Look Like From The Large Magellanic Cloud?
In this new #ScienceFromHome video we talk about galaxies visible to the naked eye and what the Milky Way looks like from its largest satellite.
Videos
Meet The Overly Powerful Black Hole RX J1532
I’ve been asked a few times about powerful supermassive black holes, and one of my old articles has suddenly become popular again, getting a thousand views in June, so I think we are in a new zeitgeist of black hole interests. So, I’ve prepared a little video about an extremely powerful object kn...
Hubble
International Astronomy Day 2017 & Hubble at 27!
It’s #International Astronomy Day and Hubble has turned 27 this month! Let’s celebrate with some of its most breathtaking pictures!
Videos
The Astroholic in 60 Second – TRAPPIST-1 Has 7 Exoplanets
An international team of astronomers has made a great discovery. A nearby exoplanetary system has seven Earth-size planets!
Videos
Smashing Galaxies – The Documentary
This documentary explores the tumultuous lives of galaxies with a focus on galaxy collision: the key mechanism in galaxy evolution.
Science Playground
Snuffing Out Candles With Carbon Dioxide
A cool thing to do if you have leftover dry ice is to snuff out candles using just carbon dioxide. You put dry ice in a jar and let it sublimate. The carbon dioxide will remain in the jug, as the density of CO2 is around 1.98 kg/m3, making it denser than the average density.
Videos
Boiling water with ice
Thermodynamics is a funny area of physics, where different physical quantities are profoundly connected. In this video we look at how reducing the pressure allows you to reduce the boiling point of water.
Elliptical Galaxy
A60s – A Galactic Heartbeat
Astronomers can measure how much the center of galaxies changes over time, taking the heartbeat of these cosmic islands.
Astronomy
Cecilia Payne-Gaposchkin: the woman who discovered what the Universe is made of.
In this vlog, I talk about Prof. Payne-Gaposchkin, one the most important astronomers of the 20th Century. Thanks to her we know that stars are not made by the same elements as the Earth, and that Hydrogen is the most abundant element in the Universe.
Astronomy
Some facts on Betelgeuse going supernova
Every few months, I see articles about Betelgeuse, the right shoulder in the constellation of Orion, ready to go supernova. The articles vary from the sensational to the apocalyptic and I can understand why it is a fascinating subject. A supernova in our galactic backyard.