Space calendar 2021: Rocket launches, sky events, missions & more! By Hanneke Weitering Here's a guide to all the rocket launches and astronomical events in 2021, as well as milestones for space missions, anniversaries and conferences.
A brief history of Mars missions By Elizabeth Howell It's only natural for humankind to want to know more about Mars, our dearest planetary neighbor.
What is the ionosphere? (And who is Steve?) By Nicoletta Lanese A concentration of plasma in the Earth's atmosphere, called the ionosphere, interacts with solar winds, ultraviolet radiation and radio waves.
Tianwen-1: China's first Mars mission By Vicky Stein Tianwen-1 is the ambitious first independent interplanetary mission from China, now in orbit around Mars.
Night sky, February 2021: What you can see this month [maps] By Chris Vaughan Find out what's up in your night sky during February 2021 and how to see it in this Space.com stargazing guide.
The brightest planets in February's night sky: How to see them (and when) By Joe Rao Here's how to see planets visible in February's night sky.
Shannon Walker: NASA astronaut and SpaceX Crew Dragon mission specialist By Sarah Wild Here's a summary of Shannon Walker's career.
What was the Star of Bethlehem? By Jonathan O'Callaghan, All About Space magazine According to the New Testament, the Star of Bethlehem led the three wise men to Jesus' birth. Here are a few theories about what the star really was.
Solar eclipses: When is the next one? By Joe Rao Solar eclipses are one of nature’s most spectacular events.
Solar eclipse guide 2020: When, where & how to see them By Hanneke Weitering On Dec. 14, a total solar eclipse will be visible from South America. It will be the first and only total solar eclipse of 2020. Here's everything you need to know.
China's Chang'e 5 mission: Sampling the lunar surface By Adam Mann The historic Chang'e 5 mission is China's first attempt to bring samples back from the moon.
United Launch Alliance: Combining the forces of two aerospace giants By Adam Mann An overview of the history and accomplishments of the private space venture United Launch Alliance.
Lunar eclipses: What are they & when is the next one? By Robert Roy Britt Lunar eclipses occur when Earth's shadow blocks the sun. There are three types; the most dramatic is a total lunar eclipse. Find out when the next one will be.
Arecibo Observatory: Watching for asteroids, waiting for E.T. By Elizabeth Howell Arecibo Observatory has been used to send a SETI message as well as for scanning the skies for approaching asteroids. It collapsed in 2020.
The Laser Interferometer Gravitational-Wave Observatory (LIGO): Detecting ripples in space-time By Adam Mann An overview of LIGO and how it detects gravitational waves coming from the universe.
Asteroid Ryugu: The twirling space rock visited by Hayabusa2 By Adam Mann Information about the asteroid Ryugu, which was explored by the Hayabusa2 spacecraft from 2018 to 2019.
The Very Large Array: 40 years of groundbreaking radio astronomy By Adam Mann Facts and details about the iconic Very Large Array, a radio astronomy facility in New Mexico.
Voskhod program: The Soviet Union's first crewed space program By Adam Mann An overview of the Voskhod spacecraft, which was used during the second Soviet human spaceflight program
