Once people get there, Mars will be contaminated with Earth life.
NASA/Pat Rawlings, SAIC
Space researchers have had a careful approach to robotic exploration of Mars and been hands-off toward Europa and Enceladus. Why is human exploration – and inevitable contamination – of Mars different?
Mars seen by the Viking orbiter.
There's enough dissolved oxygen in the salty lake below Mars' surface to support simple lifeforms such as sponges. Here's what that means for space exploration.
Enjoying the planets lined up in a row.
The five planets visible to the naked eye since ancient times are putting on a dazzling display this month, in a night-sky dance along with the Moon.
The south polar cap of Mars is hiding a subsurface lake, according to new research.
Studies from our own planet shed light on whether there could be life in a subglacial lake on Mars.
The moon is our closest neighbour and our best hope for building capacity to explore space.
U.S. Vice-President Mike Pence speaks about the creation of a United States Space Force on Aug. 9, 2018 at the Pentagon.
(AP Photo/Evan Vucci)
Could Canadian technology play a part in the newly announced U.S. Space Force? A team at McMaster University has developed an instrument that could keep Space Force troops safe from radiation.
Earth experiences constant volcanic activity - here’s Indonesia’s Mount Anak Krakatau (Child of Krakatoa) photographed in July 2018.
Compared to Earth, more "oomph" is required to bring magma to the surface of Mars, and this is probably why we haven't seen any recent eruptions on the red planet.
Ella and Nicki at the Mars Desert Research Station.
Augmented reality technology could help recreate familiar sensory experiences from Earth.
Pie in the sky? Mars Ice Home concept.
Elon Musk may be disappointed by recent studies threatening his plans to go to Mars, but planetary scientists are breathing a sigh of relief.
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.
We can create the right kind of food plants to survive on Mars.
If humans are to live on Mars they will need a stable supply of food. Earth plants are not suited to the Mars climate but we can engineer plants that are.
Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we now know, is a lake of liquid water.
Researchers have found evidence of a large lake of salty water, buried 1.5 kilometres beneath the southern polar ice cap on Mars. So what does that mean for life on the red planet?
Edwin E. ‘Buzz’ Aldrin Jr. poses for a photograph beside the U.S. flag deployed on the moon during the Apollo 11 mission on July 20, 1969.
Neil A. Armstrong/NASA/AP Photo
Forty-nine years ago, on July 20, 1969, American astronauts planted a US flag on the moon. A space lawyer explains the implications, who owns the moon, and what it means for lunar mining.
The Blood Moon from January 31, 2018. Our second chance to see an eclipsed Moon this year is coming up on July 28.
All five five planets visible to the naked-eye are on show in the night skies over Australia, and a Blood Moon on the way too.
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.
Nearly 50 years since the first man walked on the moon, our morals are still stranded on Earth.
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.
Mars seen by Curiosity.
NASA and ESA have signed a letter of intent to collect samples from Mars and return them to Earth.
InSight aims to figure out just how tectonically active Mars is, and how often meteorites impact it.
What is Mars made of? We hear from a scientist who will be part of the team analysing 'marsquake' seismic data and orbital imagery from the InSight mission to the red planet.
Cosmic radiation is much higher today than it was during the Apollo era.