A DIY satellite ground station in London, UK.
Dyer & Engelmann
With an antenna, a laptop and some software, you can take a picture of Earth from space.
PhotoVisions/Shutterstock
It’s often said that the aurora, or the northern lights, is caused by ‘particles from the Sun’. But in reality things are more complicated.
Nasa
The mission is set to launch in March 2022. Here’s what you need to know.
The Earth spins as it orbits the Sun. Elements of this image furnished by Nasa.
janez volmajer/Shutterstock
Only a planet crashing into it might stop the Earth’s spin.
Image of Ryugu taken by the Hayabusa 2 spacecraft in 2018.
JAXA/wikipedia
We may be on the brink of discovering whether water and organic material, which enabled life on Earth, came from asteroids.
Early Earth on the left, had seas infused with life-enhancing iron, whereas Earth today, seen on the right, does not.
Credit: Image courtesy of Mark A. Garlick / markgarlick.com
Life doesn’t just need water and oxygen to thrive, it also needs iron.
SPP 1992 (Patricia Klein)
Most of what we know about planets outside our Solar System relates to gas-giant planets. A new study has identified and characterised a smaller exoplanet.
Pexels
Welcome to an entirely new understanding of the world.
This image of the Earth from a distance, known as the Blue Marble, was taken by Apollo 17 astronauts.
NASAMarshall/Flickr
Photographing the full Earth from space could provide a profound and timely reminder of its vulnerability in the face of climate change.
Scientists have been studying lunar samples brought back from Apollo missions to understand the geologic history of the Moon.
NASA
Without a magnetic field, the Moon’s surface is exposed to solar wind. These could have been depositing resources like water and potential rocket fuel on the Moon’s surface for billions of years.
The Sun over Earth, seen from the International Space Station.
NASA
When heat in doesn’t equal heat out, Earth sees changes.
The planet and the way we live on it are constantly changing.
Buena Vista Images via Getty Images
The Earth is constantly changing in natural ways, but most of those changes are very slow. Humans are speeding up other changes with global warming.
Gravity feels like it’s pulling everything toward Earth, but why?
AdventurePhoto/E+ via WikimediaCommons
Gravity is something every person on Earth intuitively understands: It is what keeps you on the ground. But how come gravity pulls down, rather than pushes up? Einstein came up with the answer.
It can stretch your mind to ponder what’s really out there.
Stijn Dijkstra/EyeEm via Getty Images
Astronomers know a lot about what’s in outer space – and think it’s possible it never ends.
SachaFernandez / Flickr
This Wednesday night, everywhere in Australia will have a box seat for a spectacular total eclipse of the Moon.
A red blood moon is caused by sunlight passing through the Earth’s atmosphere.
U.S. Navy/Joshua Valcarcel/WikimediaCommons
In the early morning of May 26, 2021, there will be a super blood-red lunar eclipse. The show will be spectacular and can all be explained by the orbits of the Earth and Moon.
Canada’s latest federal budget did little to tackle climate action or income inequality, two problems with strong ties. Alberta’s Bow Lake is seen in this photo.
Josh Woroniecki/Unsplash
The snail’s pace of action in this year’s federal budget on climate is out of step with the urgency of the climate and income inequality crises.
Clayoquot Sound, part of the Tla-o-qui-aht territory, has been the site of numerous protests against logging the forest. Meares Island was declared a Tribal Park in 1984.
(Shutterstock)
To combat the biodiversity crisis, we need to fundamentally shift our economy and society and make nature conservation the norm.
The sky can be so many different things: it can be big, beautiful and blue, or grey, cloudy and rainy. It can also be full of stars, or full of orange and red clouds at sunset or sunrise.
(Shutterstock)
A young reader asks: What is the sky?
4 billion years ago, the Earth was composed of a series of magma oceans hundreds of kilometres deep.
Larich/Shutterstock
The rocks provide rare evidence of a time when Earth’s surface was a deep sea of incandescent magma.