Ailsa Harvey

Reference Geoengineering is the use of technology to alter Earth's climate. This can take place on Earth or in space.

REFERENCE Kalpana Chawla's story has inspired millions to pursue careers in space.

Reference Astronomers say there are 100 billion to 200 billion galaxies in the universe. But accurately counting the number of galaxies depends on several factors.

Reference What is the sun made of? In several layers, hot gases are converted into energy and released as heat and light.

Reference Earth's star is the largest and the most massive object in the solar system. More than one million Earths could fit inside the sun.

Reference Metal 3D printing can produce the most intricate rocket parts, using combustion-resistant material

Reference This lunar lander is being developed by Blue Origin, with the aim to contribute to future space exploration.

REFERENCE Elon Musk is an entrepreneur best known in space circles for launching SpaceX, the first private company to launch a mission to the International Space Station.

Remembering the life of Apollo 1 astronaut, Roger Chaffee.