Results tagged “Astrophysics”

How do you observe a process that takes more than one trillion times longer than the age of the universe?

Unlike subatomic particles, quasiparticles are not actually particles.

How are chemical elements produced in our Universe? Where do heavy elements like gold and uranium come from?

Illinois Institute of Technology Associate Professor of Physics Bryce Littlejohn is part of an international team of scientists that has dealt a blow to a popular theory of the existence of a fourth "sterile" neutrino.

There is a significant discrepancy between theoretical and observed amounts of lithium in our universe.

Physicists in Israel have created a quantum interferometer on an atom chip.

An international research team analyzed a database of more than 1000 supernova explosions and found that models for the expansion of the Universe best match the data when a new time dependent variation is introduced.

Extremely precise measurements are possible using atom interferometers that employ the wave character of atoms for this purpose.

Using Planck data from the cosmic microwave background radiation, an international team of researchers has observed a hint of new physics.

Just as a literature buff might explore a novel for recurring themes, physicists and mathematicians search for repeating structures present throughout nature.

Grab a mixing bowl from your kitchen, throw in a handful of aluminum balls, apply some high voltage, and watch an elegant dance unfold where particles re-arrange themselves into a distinct "crystal" pattern.

Using the MUSE instrument on ESO's VLT , a team led by Thomas Collett from the University of Portsmouth in the UK first calculated the mass of ESO 325-G004 by measuring the movement of stars within this nearby elliptical galaxy .

A research team of multiple institutes, including the National Astronomical Observatory of Japan and University of Tokyo, released an unprecedentedly wide and sharp dark matter map based on the newly obtained imaging data by Hyper Suprime-Cam on the Subaru Telescope.

New Insight Into Dark Matter Halos

In the 1970s, scientists noticed something strange about the motion of galaxies. All the matter at the edge of spiral galaxies was rotating just as fast as material in the inner part of the galaxy.

Nearly 10 billion years ago in a galaxy known as PKS B1424-418, a dramatic explosion occurred.

On Sept. 14, waves of energy traveling for more than a billion years gently rattled space-time in the vicinity of Earth.

How small can a droplet shrink and remain a liquid?

By combining observations of the distant Universe made with ESA's Herschel and Planck space observatories, cosmologists have discovered what could be the precursors of the vast clusters of galaxies that we see today.

A team of astronomers, including Danai Antonopoulou and Anna Watts from the University of Amsterdam, has discovered that sudden speed jumps in the rotational velocity of pulsars have a minimum size, and that they are caused not by the unpinning and displacement of just one sub-surface superfluid vortex, but by billions.

First discovered in 2007, "fast radio bursts" continue to defy explanation.

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