Computers, Science, & Computer Science

New mass map of a distant galaxy cluster is the most precise yet

Colour image of galaxy cluster MCS J0416.1–2403

Astronomers using the NASA/ESA Hubble Space Telescope have mapped the mass within a galaxy cluster more precisely than ever before. Created using observations from Hubble’s Frontier Fields observing programme, the map shows the amount and distribution of mass within MCS J0416.1–2403, a massive galaxy cluster found to be 160 trillion times the mass of the…

A Really Simple Turing Machine simulator in Python

Turing_Machine

From time to time I scour the web looking for a really simple TM (Turing Machine) simulator, perhaps for fun or to illuminate some programming language (usually Python). Every time I end up disappointed, the examples I found were usually not very simple, many have a lot of classes and other machinery, perhaps for a…

Compuversity

KingsCollegeChapelWest

This site is designed to help STEM (Science, Technology, Engineering, & Mathematics) teachers & learners to find useful resources – e.g. MOOCs (Massive Open Online Courses), online tutorials & videos, references, examples, etc. We will post information about upcoming online courses, so that you can register for them before they start. Some courses can be…

How Turing accidentally invented the computer

Screenshot - 170714 - 11:46:05

It’s hard to do anything these days without a computer being involved in some way. From credit card readers to traffic signals to the phone in your pocket, computers can perform all kinds of tasks thanks to different software programs. So how did the programmable computer come about? In this animation, we show you how…

Merging galaxies and droplets of starbirth: Hubble snaps a violent galactic merger and chain of star formation

Droplets of star formation and two merging galaxies in SDSS J153

The Universe is filled with objects springing to life, evolving and dying explosive deaths. This new image from the NASA/ESA Hubble Space Telescope captures a snapshot of some of this cosmic movement. Embedded within the egg-shaped blue ring at the centre of the frame are two galaxies. These galaxies have been found to be merging…

VLT Clears Up Dusty Mystery: New observations reveal how stardust forms around a supernova

Artist’s impression of dust formation around a supernova explo

A group of astronomers has been able to follow stardust being made in real time — during the aftermath of a supernova explosion. For the first time they show that these cosmic dust factories make their grains in a two-stage process, starting soon after the explosion, but continuing for years afterwards. The team used ESO’s…

A Stellar Womb Shaped and Destroyed by its Ungrateful Offspring

The Gum 15 star formation region

The little-known cloud of cosmic gas and dust called Gum 15 is the birthplace and home of hot young stars. Beautiful and deadly, these stars mould the appearance of their mother nebula and, as they progress into adulthood, will eventually also be the death of her. This image was taken as part of  the ESO Cosmic…