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Artículos sobre Astronomy

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If gas clouds collided to create big stars, they might look like this during the collision. This is the RCW120 Spitzer Bubble. NASA

Milky Way’s biggest star may have had a different beginning

The current theory of star formation has a problem: it cannot make big stars. In the standard star-making recipe, stars are formed in the depths of gas clouds made from molecular hydrogen. These clouds…
The nearest stars to Earth – apart from the sun – are more than 4x1013 kilometres away. Stinger_Y_Y

Explainer: light-years and units for the stars

Space is Big. Really Big. The Hitchhiker’s Guide to the Galaxy pretty much nailed space with those five words. And space is so really big that our earthly measures of distance struggle. The distance to…
Star clusters with an intermediate mass and large size were not known – until now. Ani-Bee

Mind the gap: filling in the missing pieces for star clusters

My colleagues and I have confirmed the existence of a new type of star cluster – as published recently in Monthly Notices of the Royal Astronomical Society. But what are star clusters, and why do they…
Name an exoplanet, you don’t need to be a scientist for that. UCL Mathematical and Physical Sciences

Explainer: what is citizen science?

Public participation in science is increasing, and citizen science has a central part in this. It is a contribution by the public to research, actively undertaken and requiring thoughtful action. Citizen…
Two of Kepler’s four reaction wheels have stopped working, which may mean the end for the spacecraft. NASA/Kepler mission/Wendy Stenzel

The end of Kepler? That would be universally bad

As I write this, engineers at NASA and Ball Aerospace & Technologies have their fingers crossed they’ll be able to restart the stricken Kepler space observatory, which has been in hibernation mode…
Torres Strait Islanders use constellations, such as the shark ‘Baidam’ pictured here, for practical purposes. Brian Robinson

A shark in the stars: astronomy and culture in the Torres Strait

Technology has, without doubt, expanded our understanding of space. The Voyager 1 space probe is on the brink of leaving our solar system. Massive telescopes have discovered blasts of fast radio bursts…
Artist’s composite of the CSIRO’s 64m Parkes Radio Telescope showing an extragalactic radio burst appearing briefly, far from the Milky Way’s disk. CSIRO/Harvard/Swinburne Astronomy Productions

Fast Radio Bursts: new intergalactic messengers

How many electrons are there in the universe? That may seem nigh on impossible to calculate – let alone comprehend – but the discovery of a new population of astrophysical events called Fast Radio Bursts…
A new study shows only 30% of stars in a globular cluster will reach old age and become planetary nebulae. NASA

A stellar mid-life crisis: why do some cluster stars die early?

It was written in the stars all along, but we’ve just found out: a whopping 70% of stars in a widely-studied cluster die before reaching old age which, for stars, is the most productive stage of their…
Involvement of citizen scientists meant that meant that someone, somewhere in the world, always had clear skies to be able to observe the binary star system. http://www.flickr.com/photos/29225114@N08

Crowdsourcing astronomy: how backyard stargazers helped unlock SS Cygni’s secrets

SS Cygni, a famous stellar system made up of one normal star and one dead star, is much closer than previously thought, according to a new study by Australian researchers and citizen scientists. The new…
The International Space Station after undocking from the now-retired Endeavour space shuttle. NASA

Explainer: the International Space Station

As the most visible man-made object in the night sky the International Space Station (ISS) is of significance to humankind. It takes humans from being explorers of space to being residents of space. The…
Astronaut Buzz Aldrin and his colleagues on the Apollo 11 mission inspired generations to be interested in lunar exploration. EPA/NASA

Satellite of love: our on-off relationship with the moon

Like all relationships, our association with the moon has had its ups and downs. In this series we’ve talked about the nature of the satellite and how we think it was formed - in a giant collision that…
How does the moon affect Earth’s inhabitants? shutterstock.com

With or without you: the role of the moon on life

From encouraging the first steps of life migrating from the oceans to the land, to stabilising Earth’s axial tilt against chaotic excursions, the moon is often put forth almost as a magical ingredient…
Australian astronomer Professor Ken Freeman has won a major American astronomy prize. AAP

ANU professor awarded top American astronomy prize

Australian astronomer Professor Ken Freeman has been awarded the American Astronomical Society’s top prize. The prestigious Henry Norris Russell Lectureship was awarded to Professor Freeman for his work…
A handout aerial image released by the New South Wales Rural Fire Service on 14 January 2013 shows the partly destroyed Siding Spring Observatory in the Warrumbungle National Park near Coonabarabran in New South Wales. EPA/NSW Rural Fire Service

Smoke damage to four buildings housing telescopes at observatory

Four buildings containing telescopes at Australia’s largest astronomical observatory have suffered smoke damage in a bushfire, the Australian National University said today. Access to the Siding Spring…
Bushfires and smoke surround the Siding Spring Observatory in Warrumbungle National Park near Coonabarabran. AAP Image/NSW RFS

Homes burned but telescopes OK: bushfire at major observatory

Australia’s biggest astronomical observatory was burned in a bushfire near Coonabarabran in Western NSW overnight, threatening over $100 million worth of research infrastructure and the largest optical…
The SKA is on the horizon, but how do we get from here to there? Pete Wheeler, ICRAR

Aspiration vs delivery: the long road to the Square Kilometre Array

The Square Kilometre Array (SKA) radio telescope has been on the cards since the early 1990s. It took until May of last year to find out where it will be built – in South Africa, Australia and New Zealand…
It’s long been suspected that Mercury’s poles are home to water ice. That speculation has now been confirmed. NASA

Water ice found on Mercury – has the ‘heavy metal’ planet lost its edge?

Whenever I’m telling students or people at conferences about Mercury, I always describe it as the “heavy metal” planet. Many things on this closest planet to the sun are extreme, from its 88-Earth-day…

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