Andrew May

Reference Here we explore some of the brightest stars in our night sky. These luminous stars have been a familiar sight to humans since ancient times.

Reference The Kármán line is the official boundary between the Earth’s atmosphere and outer space. But defining such a boundary can be tricky.

Reference Spaceship Neptune will launch from NASA's iconic Kennedy Space Center in Florida and send passengers just below the Karman line.

Reference Blue stars are extreme in every way. They're the hottest, most massive and shortest-lived stars in the universe.

Reference The sky is blue and sunsets are red because different colors of light behave differently when they encounter air molecules, known as Rayleigh scattering.

Reference The Vulcan Centaur rocket is United Launch Alliance's new methane-fueled rocket due to launch in late 2023.

Reference A parsec is a standard astronomical measurement that is often misunderstood.

Reference Among the most spectacular sights in the sky, nebula come in a range of different types.

Reference Our best current theory about how galaxies form involves gravity, dark matter and mergers.

Reference All you need to know about the elusive atmospheric phenomena of red lightning, also known as red sprites.

Reference The Large Hadron Collider is the world's biggest particle accelerator. It's located at the European particle physics laboratory CERN, near Geneva, Switzerland.

Reference Space weather refers to conditions in the region of space that is affected by the sun. It is tricky to predict and can wreak havoc on the technological world.

Reference Low Earth orbit is the lowest altitude a satellite can travel around our planet.

Reference The Carrington Event took place in September 1859 and is one of history's largest solar storms. Events like this can wreak havoc on our technological world.

Reference Hubble’s law tells us that the universe is in a constant state of expansion

Reference A quick overview of different sounds in space from other planets, as recorded by spacecraft and radio telescopes on Earth.

Reference What are supermassive black holes and how are they created?

Reference The Big Bang Theory explains how the universe began with an infinitely hot and dense single point that inflated to form the ever-expanding cosmos we see today.

Reference All about the Planck time: where it came from, what it is, and what it might reveal about the way the universe works

A list of every moon mission with a few mission highlights.