The eROSITA telescope has provided a new, sharp view of hot and energetic processes across the Universe. The eROSITA X-ray telescope has completed its first full sweep of the sky. This new map of the hot, energetic universe contains more than one million objects, roughly doubling the number of known Read more…
Before addressing Black Hole sizes, we should first go back to see what astronomers mean when they use the term “Black Hole”. This may be easiest to understand when considering the end products of stars.
Over the past few weeks I have been hearing the term “The Big Bounce Theory,” quite a lot. At first I thought it was a sequel to the brilliant “The Big Bang Theory” TV show. When listening to the “Star Talk,” podcast by Neil De Grasse Tyson however Read more…
While HST’s successor is named after the architect of the revolutionary Apollo Moon missions, an obvious tribute to the National Aeronautics and Space Administration’s second administrator, James E. Webb, the name given is perhaps also symbolic of the aspirations of all those involved in the project, that with the telescope’s Read more…
Students in Northern Ireland hoping for careers in the exciting and increasingly important space sector now can pursue a course targeting their needs. The Council for the Curriculum Examinations & Assessment’s new QCF Level 2 Space Science Technology qualification has been accredited by Ofqual and is available for first teaching Read more…
Our Solar System is old. Our best estimates from radiometric dating of meteorites suggest the Sun and its planets (including Earth) were forming some 4.6 billion years ago. The Universe itself appears to be some 13.8 billion years old based on its observed rate of expansion and the properties of Read more…
Looking up in to the night sky it’s not difficult to see why the ancient Greeks believed that all the stars in the night sky were fixed on a celestial sphere revolving around the Earth and other planets. From our view on Earth the stars appear to be at a Read more…
Have you ever wished you could hop into a time machine, zip back billions of years and answer one of the age old questions that have plagued mankind from the first time someone peered up into the night sky? To know what exactly happened in the universe that created the Read more…
“How could the Universe we see around us be created by an explosion?” This is a question often asked by those puzzled by the scientific consensus, the standard model of cosmology, which tells of our entire Universe bursting forth in a single dramatic event, the Big Bang. Modern thinking suggests Read more…
The Universe is 13.75 billion years old.It is easy to say, but what does that mean in Earthly terms?Let’s squeeze the whole history of the Universe into a year! Just to clear, we’re putting things into perspective by compressing the Universe’s whole 13.75 billion years since the Big Bang Read more…
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