The James Webb telescope: what it has actually changed
Webb's real legacy is not imagery but overturned assumptions: galaxies too big and too bright barely 300 million years after the Big Bang…
Amelia Hart
443 reading now
#Astronomy
Stories tagged “Astronomy”.
11 stories
Light pollution: what Britain lost when the night sky went orange
Skyglow now hides the Milky Way from most of urban Britain, yet unlike almost every other pollutant it vanishes the moment the lights go…
Elena Marsh
371 reading now
The James Webb Space Telescope: What It Has Taught Us About the Universe
Since it began observing in 2022, the James Webb Space Telescope has reshaped our view of the early universe, distant galaxies and the…
Dr. Nadia Okoro
326 reading now
What Is Dark Matter? The Universe's Missing Mass
Dark matter is an invisible form of mass that appears to outweigh ordinary matter several times over. We infer it from gravity, yet it has…
Dr. Nadia Okoro
339 reading now
What Is a Black Hole?
A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. This clear guide explains how black…
Dr. Nadia Okoro
478 reading now
How Do Telescopes Work?
Telescopes work by gathering and focusing light to make distant, faint objects appear brighter and bigger. This guide explains refractors…
Dr. Nadia Okoro
401 reading now
The Big Bang, Explained
The Big Bang is the leading scientific explanation for how the universe began: not an explosion in space, but the expansion of space itself…
Dr. Nadia Okoro
356 reading now
Comets, Asteroids and Meteors: What's the Difference?
Comets, asteroids, meteoroids, meteors and meteorites are easy to confuse. This guide explains what each one is, what they are made of…
Dr. Nadia Okoro
439 reading now
What Causes the Seasons?
The seasons are caused by the tilt of Earth's axis, not its distance from the Sun. This guide explains why the tilt matters, why the…
Dr. Nadia Okoro
452 reading now
What Is a Galaxy?
A galaxy is an enormous, gravity-bound system of stars, gas, dust and dark matter. This guide explains what galaxies are made of, the main…
Dr. Nadia Okoro
347 reading now
How Do Solar Eclipses Happen?
A solar eclipse happens when the Moon passes directly between the Earth and the Sun, casting its shadow on our planet. Here is the geometry…
Dr. Nadia Okoro
449 reading now