Articles on Astronomy

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Another reason you don’t want to get too close to a black hole is because of something we call ‘spaghettification’. If this happened to Earth it would be… unpleasant. Shutterstock

Curious Kids: can Earth be affected by a black hole in the future?

If you got too close to a black hole, it would suck you in and you'd never be able to escape, even if you were travelling at the speed of light. This point of no return is called the event horizon.
Near-Earth asteroids such as Bennu, and 2019 OK which passed close to Earth this week, pose a potential threat to our planet. NASA

An asteroid just buzzed past Earth, and we barely noticed in time

A 100-metre-wide asteroid passed just 70,000km from Earth on Thursday, and we had little warning it was about to happen. What threat is posed by asteroids and how do we find them?
A Sept. 20 citizen “raid” on Area 51, a secretive military installation long fancied to hold alien remains, has drawn worldwide interest. Fer Gregory/Shutterstock.com

Yes, I’m searching for aliens – and no, I won’t be going to Area 51 to look for them

As more than a million people have indicated plans to partake in a citizen 'raid' on the famed Area 51 to 'see them aliens,' a scholar on the search for extraterrestrial life weighs in on the hype.
People do live outside Earth – on the International Space Station! But humans have had to find a way to make the conditions there more like what we’re used to at home. Flickr/NASA's Marshall Space Flight Center

Curious Kids: can people live in space?

The short answer is yes, but it’s really, really difficult.
Fifty years ago, on July 20, 1969, humans stepped onto another celestial body and into history. NASA

Mapping the Moon for Apollo

The first humans to land on the Moon, and the team that got them there, get all the glory. But what about the people who laid the foundation for this effort by mapping the Moon? Who were they?
The low solar corona as viewed in extreme ultraviolet light. Bright regions are where the most energetic solar storms are born. An eruption in action can be seen in the bottom-left. NASA’s Solar Dynamic Observatory (SDO) satellite.

Total solar eclipses reveal the dark and stormy side of the sun we never see

Scientists spend years preparing for the two-minute window of a total solar eclipse.
A view from CSIRO’s Australian SKA Pathfinder (ASKAP) radio telescope antenna 29, with the phased array feed receiver in the centre, Southern Cross on the left and the Moon on the right. CSIRO/Alex Cherney

How we closed in on the location of a fast radio burst in a galaxy far, far away

For the first time scientists have located the home galaxy of a one-off fast radio burst. Here's how they did it – and what they learned about the galaxy.
Searching for planets around nearby stars is like searching for a needle in a field of haystacks. Trevor Dobson/Flikr

How we found a white dwarf – a stellar corpse – by accident

Science is full of surprises. While searching for planets orbiting nearby stars, researchers stumbled across the remains of a star that once outshone the Sun.
The far side looks a lot like the near side. NASA's Scientific Visualization Studio

What’s on the far side of the Moon?

The far side of the Moon sees its share of sunlight – it's dark only in the sense that it's mysterious because it's never visible from Earth. Here's why.

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