Light trails left in the sky (photographed with a long exposure time), by Starlink satellites, seen from New Mexico, USA.
By 2025 Elon Musk wants to launch 12,000 satellites and corner the global Internet market. What will be lost is earth-based astronomy, the idea that space belongs to us all and the beauty of a starry sky.
A weather buoy floats in Lake Michigan.
The COVID-19 pandemic hasn't just disrupted our lives. It has also challenged the way we forecast the weather.
Two CubeSats, part of a constellation built and operated by Planet Labs Inc. to take images of Earth, were launched from the International Space Station on May 17, 2016.
SpaceX and other companies are rushing to put thousands of small, inexpensive satellites in orbit, but pressure to keep costs low and a lack of regulation leave those satellites vulnerable to hackers.
The now defunct Infrared Astronomical Telescope was one of the satellites involved in the near-collision.
Two defunct satellites passed within metres of one another, prompting renewed focus on the dangers of space debris. But with many satellites treated as military secrets, how do we track the hazards?
The electromagnetic spectrum we can access with current technologies is completely occupied. This means experts have to think of creative ways to meet our rocketing demands for data.
Free space optical communication will allow the same connectivity in space we already have on Earth. And this will provide benefits across a number of sectors.
Spaceports close to the equator are ideal for low-orbit launches. Currently there are only two, both in South America.
India may soon follow in the footsteps of Asian space giants China and India, after the National Institute of Aeronautics and Space (LAPAN) announced a plan to build a spaceport in Papua.
India’s launch vehicle carrying Chandrayaan-2 lifted off from Sriharikota, India, in late July 2019.
Indian Space Research Organization via AP
Are India and China engaged in a new space race? India's increasingly ambitious space ventures, including its Chandrayaan-2 lunar mission, are evidence of the country's interest in space exploration.
Active fire hotspots detected by S-NPP/VIIRS on September 7 2019.
We have developed an online tool to help authorities identify which areas they should focus on for reducing forest fires and haze in order to maximize overall health benefits.
Visualization of the Tropical Rainfall Measuring Mission satellite in space over a tropical cyclone.
Climate change threatens the water supply of nations around the world. But it's difficult to measure whether a region has sufficient water to satisfy the people who live there. Could satellites help?
Satellites monitor climate change, guide people with GPS and keep us connected through texts and social media, but they're under threat.
One giant leap for robotkind? Future space travel will only be possible through extensive advances in space robotics.
The future of lunar exploration and space travel will be possible only through advances in robotic design and implementation.
Astronaut Buzz Aldrin on the Moon during the Apollo 11 mission.
The technologies behind weather forecasting, GPS and even smartphones can trace their origins to the race to the Moon.
The aftermath of the Brumadinho dam collapse, which took place on January 25, 2019, in Minas Gerais state, Brazil.
Population growth is creating a huge demand for infrastructure, even as environmental risks grow. To detect problems early, satellites can provide rich data to help assess infrastructure "health".
The panel of 60 Starlink satellites just before they were released to go into orbit around Earth.
Official SpaceX Photos
The first 60 satellites from Elon Musk's planned low orbit internet network have lit up the skies. But with more planned, astronomers say the satellites could ruin their work.
Russian President Vladimir Putin visits a facility to celebrate the anniversary of the 1961 first manned space mission. Space capabilities have changed a bit since then.
Alexey Nikolosky / AAP
India, China, the United States and Russia can now precisely target objects in space. But we currently lack appropriate rules and regulations to deal with space weapons.
Perhaps hoping for an election boost, India’s Prime Minister Modi announces that Indian scientists shot down a live satellite at a low-earth orbit.
Jaipal Singh / AAP
On 27 March, India announced it had successfully conducted an anti-satellite missile test, Mission Shakti. India is now the fourth country in the world displaying this capability.
A Landsat view of Mount St. Helens in 2011.
U.S. Geological Survey
Since 2008, Landsat data has been free for the world to use, spurring new applications and scientific research. But that door could soon slam shut.
Zambezi river delta, snapped by Landsat 8 in March 2018.
Satellites hundreds of miles overheard are helping scientists to predict drought, track floods and see how climate change is changing access to water resources.
Monitoring the whereabouts of floodwaters is vital for protecting infrastructure.
AAP Image/Andrew Rankin
The flood zone around Townsville extends for hundreds of kilometres, making monitoring difficult even from the air. But scientists are testing a new satellite method that can peer through the clouds.
The key to predicting drought is knowing how much water is in the soil, as well as how much rain is on the way.
New satellite-based research shows there is at least as much value in knowing how much water is left for plants to use as there is in knowing how much rain may be on the way.