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Artículos sobre Universe

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An illustration showing the merger of two black holes and the gravitational waves that ripple outward. LIGO/T. Pyle

Second detection heralds the era of gravitational wave astronomy

The observation of gravitational waves from a second black hole merger implies there are many more black holes in the universe than scientists had previously anticipated.
Like a cosmic roulette wheel, we exist because of a very lucky combination of factors. NASA/JPL-Caltech

We are lucky to live in a universe made for us

If some of the laws of physics were only infinitesimally different, we would simply not exist. It almost looks like the universe itself was built for life. But how can that be?
Black holes will be all that remains before the universe enters heath death. But the story doesn’t end there… NASA/ESA/wikimedia

The fate of the universe: heat death, Big Rip or cosmic consciousness?

In about 10100 years, the universe will have passed away in a tragic ‘heat death’. But don’t despair, eventually random conscious brains may pop out in empty space to shake things up.
A colour image of G63349, one of the galaxies in the survey, created using near-infrared (VISTA telescope) and optical (Sloan telescope) data collated by the GAMA survey. (The bright green object is a nearby star.) ICRAR/GAMA

Don’t panic, but the universe is slowly dying

Our universe’s most exciting days are well behind us, with new research showing the universe is now slowly but surely dying.
Understanding how galaxies are arranged could be the key to figuring what causes the expansion of the universe. ESA/Hubble, NASA and S. Smartt (Queen's University Belfast)

Galaxy survey to probe why the universe is accelerating

A unique map of the galaxies in the sky could shed light on the mysteries of the universe – including dark energy and dark matter.
How do we think about something we can’t see and don’t experience in our everyday lives, but seems to be pushing our universe apart ever faster? NASA, ESA, G. Illingworth, D. Magee, and P. Oesch (University of California, Santa Cruz), R. Bouwens (Leiden University), and the HUDF09 Team

Explainer: the mysterious dark energy that speeds the universe’s rate of expansion

Einstein’s theory of gravity says dark energy must be out there, accelerating the expansion of our universe. But what is it and how can we try to figure out more about it?
Looking for dark matter in the galaxy collisions such as in Abell 2744, dubbed Pandora’s Cluster. X-ray: NASA/CXC/ITA/INAF/J.Merten et al, Lensing: NASA/STScI; NAOJ/Subaru; ESO/VLT, Optical: NASA/STScI/R.Dupke

Shedding new light on the search for the ‘invisible’ dark matter

Scientists know so much about dark matter apart from what it is exactly. But are they getting any closer?
Some of the antennas of the Murchison Widefield Array radio telescope, designed to uncover what happened in the first billion years of the universe. Curtin University

Unlocking the mystery of the first billion years of the universe

More than 100 million years has been wiped off the age of the first stars but there is still the question of what happened in the first billion years of the universe. Earlier this month the European Space…
Spot the biggest. Rutherford Observatory

How big is the biggest star we have ever found?

The universe is such a big place that it is easy to get baffled by the measurements that astronomers make. The size of UY Scuti, possibly one of the largest stars we have observed to date, is certainly…

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