With any type of human exploration, there are risks as we push boundaries, and there are inevitably mishaps and fatalities as a result. Space tourism is no exception.
An artist’s rendition of the InSight lander - which will collect data on what’s inside the planet Mars.
NASA
The InSight Lander mission to Mars is preparing for launch in May 2018. But there are seven (or eight) other planets to explore: why have we such a hang up on Mars?
A statue of Konstantin Tsiolkovsky in Moscow, Russia.
Shutterstock/VLADJ
In the early 20th century a Russian scientist – regarded as the father of rocketry – made some novel predictions on where we would be in space in the 21st century. So how accurate was he?
A view from the Apollo 11 spacecraft, showing the Earth rising above the moon’s horizon (July 1969).
NASA
Scientists used to think that the ocean on Enceladus would be transient, perhaps freezing after a few million years. A new study suggests this isn’t the case.
Musk’s audacious plan to blast people to Mars by 2024 glosses over some important social and political challenges that SpaceX will need to successfully navigate to get off the ground.
The Viking landers in the 1970s were the last to look directly for life on Mars.
NASA/JPL
Planetary protection protocols try to make sure we don’t seed places like Mars with life from our planet. An astrobiologist argues they’re misguided – especially with human astronauts on the horizon.
There is water on Mars - but it’s buried, and frozen.
from www.shutterstock.com
Space exploration is exciting - but there are barriers for humans hoping to visit and even stay on planets. Buried ice on Mars could be a water source for interplanetary visits of the future.
An illustration of Cassini as it plunges into Saturn’s atmosphere.
NASA/JPL-Caltech
The Cassini space probe discovered liquid lakes, poisonous gases and the basic elements of life on Saturn’s moon, Titan.
Cassini makes the first radio occultation of Saturn’s rings producing this simulated image with green for particles smaller than 5cm and purple where particles are larger.
NASA/JPL
The Cassini space probe took us up close and through the beautiful rings of Saturn. It captured some amazing images, and even the sound of the rings during its mission.
A Cassini portrait of five of Saturn’s moons. Janus (179km across) is on the far left, Pandora (81km across) orbits between the A ring and the thin F ring, Enceladus (504km across) is centre, Rhea (1,528km), is bisected by the right edge of the image and the smaller moon Mimas (396km) is seen beyond Rhea also on the right side of the image.
NASA/JPL-Caltech/Space Science Institute
With only days to go before NASA’s Cassini space probe ends its two-decade mission to explore Saturn, what has it revealed about the ringed planet, the second largest in our solar system?
What message would you send to outer space?
NASA/JPL-Caltech