Results tagged “astronomy”

How Disk Galaxies Evolve Smoothly

Computer simulations are showing astrophysicists how massive clumps of gas within galaxies scatter some stars from their orbits, eventually creating the smooth, exponential fade in the brightness of many galaxy disks.

Astronomers present an explanation for the mesmerising shapes of planetary nebulae. The discovery is based on an extraordinary set of observations of stellar winds around ageing stars.

An international team of astronomers using NASA's Transiting Exoplanet Survey Satellite (TESS) and retired Spitzer Space Telescope has reported what may be the first intact planet found closely orbiting a white dwarf, the dense leftover of a Sun-like star, only 40% larger than Earth.

With almost two decades of mid-infrared (IR) imaging from the largest observatories around the world including the Subaru Telescope, a team of astronomers was able to capture the spiral motion of newly formed dust streaming from the massive and evolved binary star system Wolf-Rayet (WR) 112.

Hubble Views Globular Cluster NGC 1805

Many colorful stars are packed close together in this image of the globular cluster NGC 1805, taken by the NASA/ESA Hubble Space Telescope.

The "IceCube" neutrino observatory deep in the ice of the South Pole has already brought spectacular new insights into cosmic incidents of extremely high energies.

The Milky Way is not alone in its neighborhood. It has captured smaller galaxies in its orbit, and the two largest are known as the Small and Large Magellanic Clouds, visible as twin dusty smears in the Southern Hemisphere.

Meathook Galaxy NGC 2442 As Seen By Hubble

This image from the NASA/ESA Hubble Space Telescope features the spectacular galaxy NGC 2442, nicknamed the Meathook galaxy owing to its extremely asymmetrical and irregular shape.

This selection of images of different kinds of light from various missions and telescopes have been combined to better understand the universe.

A Direct View Of Star/Disk Interactions

A team including researchers from the Institute for Astrophysics of the University of Cologne has for the first time directly observed the columns of matter that build up newborn stars.

Hubble Views Edge of Stellar Blast

While appearing as a delicate and light veil draped across the sky, this image from the NASA/ESA Hubble Space Telescope actually depicts a small section of the Cygnus supernova blast wave, located around 2,400 light-years away.

Until now, these flows of material had been detected only in other wavelength ranges, such as X-rays or the visible, depending on the phase in which the black hole is consuming its surrounding material.

In a landmark study, scientists using NASA's Hubble Space Telescope have mapped the immense envelope of gas, called a halo, surrounding the Andromeda galaxy, our nearest large galactic neighbor.

When a star passes too close to a supermassive black hole, tidal forces tear it apart, producing a bright flare of radiation as material from the star falls into the black hole.

Magnetized "Rivers" Feed Star Birth

Stars like our Sun form when clouds of gas and dust collapse under gravity. But how does the material get from interstellar space into these clouds and what controls their collapse?

An international team of researchers have discovered a dense, cold gas that's been shot out from the centre of the Milky Way "like bullets".

We advocate for a mission concept study for a space telescope dedicated to solar system science in Earth orbit.

For the first time, researchers have found a way to describe conditions deep in the convection zone of "white dwarf" stars, which are home to some of the densest collections of matter in the Universe.

NGC 1614, captured here by the NASA/ESA Hubble Space Telescope, is an eccentrically shaped galaxy ablaze with activity.

Astronomers have applied artificial intelligence (AI) to ultra-wide field-of-view images of the distant Universe captured by the Subaru Telescope, and have achieved a very high accuracy for finding and classifying spiral galaxies in those images.

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