space

The first all-woman spacewalk marked a milestone in human spaceflight, led by NASA astronauts Christina Koch and Jessica Meir on October 18, 2019. This fully explained profile o...

This article explains how scientists evaluate whether a planet or moon could support life, focusing on environments beyond Earth. We define key concepts such as habitability, bi...

On September 12, 2024, Blue Origin’s NS-26 mission launched from Corn Ranch, Texas, marking the first all-female crew to fly on the New Shepard vehicle. The crew of six includ...

The phrase all-female Blue Origin space flights refers to dedicated commercial space missions on which Blue Origin has flown an all-woman crew to suborbital space. These flights...

On most clear nights, a planet is visible near the Moon, but which one changes slowly over days and months. This evergreen explanation focuses on how to determine the planet nex...

Robert Behnken is a NASA astronaut and former NASA Chief of Astronautics known for test pilot expertise, shuttle missions, and leadership. This evergreen profile covers his back...

An alien Earth is a planet outside our solar system with conditions that could allow life as we know it: a rocky composition, a temperate climate, and orbit within the host star...

In 2025, astronaut salary is commonly understood through federal pay scales for government astronauts and negotiated rates for commercial crew and commercial spaceflight partici...

A space discovery is a reported finding that adds new scientific knowledge about space, such as a planet, atmospheric property, geological process, or cosmic event. Reliable dis...

William Shatner’s spaceflight occurred on September 16, 2021, when the actor and former Star Trek star flew to space aboard Blue Origin’s New Shepard vehicle. This mission,...