There are many pieces of evidence to help explain why the Earth spins, and some major mysteries.
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An astronomer takes us on a tour of the universe to learn about the birth of stars and planets and how they get their spin.
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Spending too long in the sun can damage your DNA. But what about if you retreat back to the shade? How long does it take to get back to normal?
The sun’s rays often feel good on your skin, but can cause serious damage.
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Our ancient ancestors didn’t have clothes or houses – but that constant exposure to the sun helped their skin protect itself from the worst sun damage.
Sunscreens for sale at a Walgreens drug store.
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Rising concern about possible environmental damage from the active ingredients in sunscreens could have ripple effects on public health if it causes people to use less of them.
The way heat and humidity affect people depends on factors like the weather that’s typical where they are.
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After the announcement of President Biden’s heat initiative, The Conversation revisits stories on high summer temperatures and human health.
Exceptional high tides hit eastern Québec in 2010 and 2016.
(Groupe Facebook Grandes Marées 2010)
Popular belief suggests the highest tides in the St. Lawrence River are reached around the equinoxes. In truth, they arrive close to the solstices.
The Sun occasionally ejects large amounts of energy and particles into space that can smash into Earth.
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Space weather can affect satellites in a number of different ways, from frying electronics to increasing drag in the atmosphere.
New research confirms how particles from space can be sent careening down into Earth’s atmosphere to create the aurora, filling in a missing piece in how this stunning natural phenomenon is generated.
The sun has entered a phase causing more chances to see the northern lights in the UK, an expert explains.
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Penguins will have the best seat in the house as a total solar eclipse passes over Antarctica on December 4. Australia and New Zealand will experience a minor partial eclipse, but not a noticeable one.
It only takes light about eight minutes to go from the Sun to Earth.
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The fastest things ever made by humans are spacecraft, and the fastest spacecraft reached 330,000 mph – only 0.05% the speed of light. But there are ways to go faster.
A telescope in the outer solar system would be able to do unique science that is impossible closer to the Sun.
Such a mission could be developed soon, allowing astrophysicists to take selfies of the solar system and use the Sun’s gravity as a lens to peer deep into space.
Scientists have spotted a Jupiter-like planet surviving the death of its star.
Credit: W. M. Keck Observatory/Adam Makarenko
For the first time ever, astronomers have astrophysical evidence that Jupiter and many other planets will survive the death of the Sun.
Astronomers have found a way to estimate the number of stars in the universe.
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Scientists have a good estimate on the staggering number of stars in the universe.
The temperature of the Sun’s surface is about 6,000℃. But higher above the surface, in the atmosphere, it suddenly shoots up to more than a million degrees!
Scientists have been studying lunar samples brought back from Apollo missions to understand the geologic history of the Moon.
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.
When heat in doesn’t equal heat out, Earth sees changes.
It can stretch your mind to ponder what’s really out there.
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Astronomers know a lot about what’s in outer space – and think it’s possible it never ends.
Test out scientific ideas, connect with your ancestors or just marvel at the beauty of nature.
The vast majority of people will be oblivious to what’s going on above their heads.
Alfvén waves, first proposed 80 years ago, could explain why the sun’s atmosphere is so much hotter than its surface.