Many stars die spectacularly when they explode as supernovae. During these violent explosions, they leave behind thick, chaotic clouds of debris shaped like cauliflowers. But supernova remnant Pa 3... Read more Many stars die spectacularly when they explode as supernovae. During these violent explosions, they leave behind thick, chaotic clouds of debris shaped like cauliflowers. But supernova remnant Pa 30 looks nothing like that. Show less

Originally appeared on Glauco Custodio.I've recently discovered (or at least found a good use case for it) the satisfy matcher in RSpec. My intention was to ensure an attribute contained a string ... Read more Originally appeared on Glauco Custodio.I've recently discovered (or at least found a good use case for it) the satisfy matcher in RSpec. My intention was to ensure an attribute contained a string and not another string (within have_attributes). I tried a few variations of the code below, but none of them worked: message = Message.first expect(message).to have_attributes( conversation_id: conversation.id, customer: "[email protected]", response: include("Hello, world!").and(not_to(include("Subject:"))) ) While inspecting rspec-expectations's source code in search of an exclude matcher or something similar, the satisfy matcher stood out as a good fit: expect(message).to have_attributes( conversation_id: conversation… Show less

According to new data from BabyCentre, the UK's leading pregnancy and parenting hub, pop culture will dominate this year's choices for those who are expecting.

Four mice went to space as astronauts. One came back and became a mother. And that simple fact might matter more than you'd think for humanity's future beyond Earth.

Jamie Carragher has backed Arsenal to win the Premier League title over Manchester City. However, he claimed that it will not be straightforward due to their recent form and injury issues.

Despite its elusive nature, the species attracted global attention after a 2016 study suggested it could live for four centuries

Forty light-years away, seven Earth-sized planets orbit around a dim red dwarf star in one of the most tightly packed planetary systems ever discovered. The TRAPPIST-1 system has captivated astrono... Read more Forty light-years away, seven Earth-sized planets orbit around a dim red dwarf star in one of the most tightly packed planetary systems ever discovered. The TRAPPIST-1 system has captivated astronomers since 2017, with three of its planets orbiting in the habitable zone where liquid water might exist. But there's been a lingering question whether any of these worlds could hold onto moons. Show less

Amorim insists he is going to need all of his players to pull together at Elland Road.

If you want to determine how well a particular medicine works, what’s the worst possible type of study you can do?

Professor Geoff Beattie, a professor of psychology at Edge Hill University argues that choosing a colour scheme is a 'psychological issue, not just an aesthetic one.'