Space debris in Earth orbit creates a dangerous obstacle course for satellites and astronauts.
Dotted Yeti / Shutterstock.com
Countries developing technology that removes or blasts away space junk may appear to be doing a public service. But those same technologies can destroy military and communications satellites.
Crowds watch as the space shuttle Discovery lifts off from Kennedy Space Center in Cape Canaveral, Fla.
AP Photo/Phil Sandlin
The United States already has a space agency: NASA. So why do we need a Space Force, and what would it do? Could a Space Force strain diplomatic relationships, reigniting the race to militarize space?
There are plans to cause HAVOC on Venus.
The upper atmosphere of Venus is the most Earth-like extra-terrestrial location in the solar system. It could even host life.
Those mesmerized by NASA’s accomplishments and ambitions wanted so much more out of the reticent Armstrong.
After the first moon landing, the feelings that propelled a unified national mission quickly dissipated. Could Armstrong have played a bigger role in galvanizing the public for future projects?
First Man: Ryan Gosling as Neil Armstrong, the first man on the Moon.
Universal Pictures and DreamWorks Pictures
The new film is a down-to-Earth portrayal of astronaut Neil Armstrong and our complex relationship with the Moon.
A Falcon 9 SpaceX heavy rocket lifts off from pad 39A at the Kennedy Space Center in Cape Canaveral, Fla., Feb. 6, 2018.
AP Photo/ John Raoux
It has been 10 years since Elon Musk's SpaceX launched the commercial space age. What hurdles must be overcome before private companies begin exploring, colonizing and mining other planets?
A scene from Doug Engelbart’s groundbreaking 1968 computer demo.
Doug Engelbart Institute
A 90-minute presentation in 1968 showed off the earliest desktop computer system. In the process it introduced the idea that technology could make individuals better – if government funded research.
A telescope pointed at the skies above Senegal to capture the stellar occultation.
François Colas, Observatoire de Paris, Insititut de Mécanique Celeste et de Calcul des Ephémérides
Senegal has made great strides in astronomy and planetary sciences in recent years.
Nervous about how southern television viewers would react, NBC executives closely monitored the filming of the kiss between Nichelle Nichols and William Shatner.
U.S. Air Force
The career arc of Nichelle Nichols – the first black woman to have a continuing co-starring role on TV – shows how diverse casting can have as much of an impact off the screen as it does on it.
Technicians prepare Swift’s UVOT for vibration testing on Aug. 1, 2002, more than two years before launch, in the High Bay Clean Room at NASA’s Goddard Space Flight Center in Greenbelt, Md.
NASA's Goddard Space Flight Center
The Swift Observatory passed a milestone: 1 million snapshots of the universe. These exquisite and revealing pictures have captured the births and deaths of stars, gravitational waves and comets.
The moon is our closest neighbour and our best hope for building capacity to explore space.
A super blue blood moon is seen from Svalbard, Norway earlier this year.
The longest lunar eclipse this century, and other special features such as Mars looking spectacular will be seen.
Fragments of the asteroid 2018 LA scattered over a wide area in Botswana’s Central Kalahari Game Reserve.
Each meteorite is a piece of the puzzle to understanding our solar system.
US F/A-18 footage of a UFO (circled in red).
Creative Commons Attribution-Share Alike 4.0 International license.
About 5 percent of all UFO sightings cannot be easily explained by weather or human technology. A physicist argues that there's compelling evidence to justify serious scientific study and that the skeptics should step aside – for the sake of humanity.
Artist depiction of an asteroid on a collision course with Earth.
An asteroid on a collision course with Earth is inevitable. Astronomer Michael Lund explains how a new telescope under construction in Chile will become a vital tool for detecting objects that could devastate our planet.
Mission specialist Sally Ride became the first American woman to fly in space.
NASA's Goddard Space Flight Center
35 years ago Sally Ride became the first American woman in space. But rather than focus on her own extraordinary achievements, her passion became boosting the number of girls pursuing STEM. Another pioneering astronaut remembers her friend and colleague.
The 35 m-diameter dish antenna of ESA’s deep-space tracking station at New Norcia, Western Australia.
Australia occupies a unique location vital for supporting NASA and ESA deep-space missions.
Following NASA's latest discovery of organic matter on the red planet, new findings in a salt lake in California could point to where to look for alien life.
An artist’s illustration of a black hole “eating” a star.
Astronomers are gathering an exponentially greater amount of data every day – so much that it will take years to uncover all the hidden signals buried in the archives.
Time to peer below the swirling clouds of Jupiter.
NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill
Now's a great time to see Jupiter as it's about to be the closest to Earth for some time. Time too to catch up with the latest on the Juno mission, exploring the largest planet in our Solar System.