Space calendar 2020: Rocket launches, sky events, missions & more! By Hanneke Weitering Here's a guide to all the rocket launches and astronomical events in 2020, as well as milestones for space missions, anniversaries and conferences.
The brightest planets in October's night sky: How to see them (and when) By Joe Rao Here's how to see planets visible in October's night sky.
Night sky, October 2020: What you can see this month [maps] By Chris Vaughan Find out what's up in your night sky during October 2020 and how to see it in this Space.com stargazing guide.
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
Explorer 1: The First U.S. Satellite By Elizabeth Howell Explorer 1 launched the United States into the Space Race.
Sputnik: The Space Race's Opening Shot By Elizabeth Howell The launch of the world's first satellite was the birth of the Space Age.
What is a Satellite? By Elizabeth Howell Artificial satellites from Earth have only populated space since 1957, but there are now hundreds of thousands of objects from our planet in orbit.
2014 MU69: Arrokoth, the most distant object ever explored By Nola Taylor Redd New Horizons' historic flyby of the KBO 2014 MU69, also known as Arrokoth, has revealed incredible insights about the birth of the solar system.
Gravitational waves: Do they suggest a bang at the end of the universe? By All About Space magazine, Colin Stuart The detection of gravitational waves could explain how our universe began when another one ended.
Spacewalks: How they work and major milestones By Paola Rosa-Aquino Spacewalks were indispensable for assembling the International Space Station. Today, they remain a crucial component for the space station's continued maintenance.
What is a solstice? By Sarah Wild Twice a year, one hemisphere has its longest day of the year while the other has the longest night. These solstices are the astronomical beginning of winter and summer.
What is an equinox? By Sarah Wild Equinoxes occur twice a year when the sun is directly above the equator, and signal herald the beginning of spring and autumn.
Black Moon 2020: What it is (and why you can't see it) By Joe Rao Tuesday's sky (Aug. 18) is host to a somewhat unusual lunar event in the Western Hemisphere: a third new moon in a season of four new moons, which some people call a "Black Moon."
Mars Reconnaissance Orbiter: 15 key milestones to celebrate 15 years in space By All About Space magazine Here are 15 of the biggest discoveries from NASA’s Mars Reconnaissance Orbiter.
SpaceX's Dragon: First Private Spacecraft to Reach the Space Station By Elizabeth Howell The Dragon spacecraft first reached the International Space Station in 2012 and Crew Dragon became the first private, crewed spacecraft to reach the ISS in 2020.
Space roar: NASA detected the loudest sound in the universe, but what is it? By David Crookes , All About Space magazine The space roar, which was detected by NASA's ARCADE mission in 2006, makes space six-times louder than anyone was expecting — have we finally found the cause?
The Vostok Program: The Soviet's first crewed spaceflight program By Adam Mann A summary of the first Soviet crewed spaceflight program, Vostok, and its many missions.
The Mercury 13: The women who could have been NASA's first female astronauts By Swapna Krishna The Mercury 13 were a group of female pilots who passed the first astronaut tests, but weren't allowed to work for NASA because of their gender.
South Atlantic Anomaly: Have astronomers finally explained space's Bermuda Triangle? By David Crookes , All About Space magazine The South Atlantic Anomaly, nicknamed the "Bermuda Triangle of space," is a portion of space above Earth where protection from high doses of radiation is significantly weaker.
2020 Full Moon Calendar By Tim Sharp, Kimberly Hickok The full moon happens once a month. Find out when.
