Diploma Astronomía Universidad de Antioquia

By Jorge Zuluaga | Noticias de Astronomía y Astrofísica

[1506.01354] Marginal evidence for cosmic acceleration from Type Ia supernovae

Abstract: The "standard" model of cosmology is founded on the basis that the expansion rate of the universe is accelerating at present --- as was …

Is the Big Bang Cycling Through Hidden Time?

<i>Edward Belbruno is a mathematician and an artist. His paintings are in major collections and exhibited throughout the United States, and he regularly</i> …

The big bang blip: Solving the mystery of why matter exists

IT’S an odd thought that the banana on your kitchen counter, squished in your lunch bag or tucked away in your desk drawer is the embodiment of one …

Quantum physics: What is really real?

A wave of experiments is probing the root of quantum weirdness.<p>Owen Maroney worries that physicists have spent the better part of a century engaging …

Galaxy’s snacking habits revealed

A team of Australian and Spanish astronomers has caught a greedy galaxy gobbling on its neighbors and leaving crumbs of evidence about its dietary …

Mountain shadow on clouds

Tenerife in the Canary Islands is one of the best places in the world to look up. Here’s the shadow of Roque del Conde, a landmark mountain there, …

What Shape is the Universe?

<i>It’s a reasonable question to wonder what the shape of the Universe is. Is it a sphere? A torus? Is it open or closed, or flat? And what does that</i> …

Across the Universe

Astronomers have discovered what seems to be the most distant galaxy yet discovered. The galaxy known as EGS-zs8-1 has a redshift of z = 7.73, …

Left-handed cosmic magnetic field could explain missing antimatter

The discovery of a “left-handed” magnetic field that pervades the universe could help explain a long-standing mystery — the absence of cosmic …

Astronomers spot one-in-10-million phenomenon in early universe

Find one quasar—a rare, superbright galaxy core in deep space—and you’d think yourself pretty lucky. So a team of astronomers is wondering how it …

Universe

The Particle That Broke a Cosmic Speed Limit

Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the …

Physics

Strange Signal from Space May Solve One of Science's Greatest Mysteries

A clue to one of the biggest questions in cosmology — why regular matter, rather than antimatter, survived to fill the universe — may have been found …

Found: The Furthest Galaxy From Earth

A long time ago, this galaxy formed far, far away<p>More than 13 billion light years from our tiny planet, an ancient galaxy lurks. Named EGS-zs8-1, it’s an extremely luminous cluster of stars—and it’s the farthest galaxy we’ve ever seen.<p>EGS-zs8-1 was identified originally by images taken with the …

Universe

Hubble finds a massive halo around the Andromeda Galaxy // News // Department of Physics // University of Notre Dame

University of Notre Dame astrophysicist Nicolas Lehner has led a team of scientists who have used NASA’s Hubble Space Telescope to identify an …

Universe

Water could have been abundant in the first billion years

How soon after the Big Bang could water have existed? Not right away because water molecules contain oxygen and oxygen had to be formed in the first …

Milky Way’s quiet life leaves it with no dark matter skeleton

THE Milky Way has had a sheltered life. A search for the signs of a violent galactic upbringing has come up empty, and the finding is helping …

Vast Universe Map Charts Our 2 Billion Light-Year Wide Cosmic 'Hood

If you ever wanted to take your starship on an intergalactic joyride, astrophysicists have got your back — they've just created the most detailed …

Half of stars lurk outside galaxies

Rocket experiment captures glow attributed to renegade stars in intergalactic space.<p>Astronomers have spotted a faint cosmic glow, unseen until now, …

Weird Object: Omega Centauri

The sight of countless brilliant stars in an inky black sky exhilarates the human spirit, for reasons no one can explain. Such intensity reaches its …

Hubble at 25: the best images from the space telescope - in pictures

As the Hubble space telescope gets ready to celebrate 25 years since its launch, we look back at some of the iconic images it has produced

Hubble Space Telescope

Parallel Worlds

• <b>Author:</b> Michio Kaku<p>In this thrilling journey into the mysteries of our cosmos, bestselling author Michio Kaku takes us on a dizzying ride to explore black holes and time machines, multidimensional space and, most tantalizing of all, the possibility that parallel universes may lay alongside our …

Encontrada una explicación al Punto Frío del universo

Los astrónomos han descubierto lo que podría ser la estructura más grande conocida en el universo, que deja su huella en la radiación de fondo de …

Hubble spies a stellar mystery

Exploding star seems unlike any kind known.<p>Astronomers have discovered a mysterious stellar outburst that appears to defy classification.<p>The …

Color differences could recalibrate cosmic acceleration rate

The expansion of the universe might not be accelerating quite as fast as researchers thought. Type 1a supernovas, exploding stars used as yardsticks …

Universe