Latest News for Stars and Galaxies Archive
08 August 2015, 08:58 AM ET
From an incredible photo of the moon crossing Earth's face to a new view of the dwarf planet Cere's mysterious bright spots, don't miss these amazing space images.
07 August 2015, 12:42 PM ET
About a third of our Milky Way's stars have migrated far from their birth-places. Astrophysicists, using the Apache Point Observatory's Galactic Evolution Explorer spectrograph, profiled the chemical signatures of 146,000 stars.
07 August 2015, 09:45 AM ET
Astronomers have announced the discovery of a truly monstrous structure consisting of a ring of galaxies around 5 billion light-years across — and it defies cosmological theory.
05 August 2015, 04:36 PM ET
The newfound galaxy, known as EGSY8p7, lies about 13.2 billion light-years from Earth — meaning astronomers are now seeing the mass of stars as it existed just 600 million years or so after the Big Bang that created the universe.
05 August 2015, 01:01 PM ET
For the first time, astronomers have spotted a protogalactic disk — a giant whirling cloud of gas that gives birth to a galaxy — and the discovery could reveal clues about how galaxies form.
05 August 2015, 07:09 AM ET
The remains of a dying star, planetary nebula ESO 378-1, have been imaged by the European Southern Observatory's Very Large Telescope. These type of nebula are created from a star's death throws, as gas is ejected and expands.
31 July 2015, 09:34 AM ET
Planet HD 219134b was detected using NASA's Spitzer Space Telescope. It resides 21 light-years away in the Cassiopeia constellation and its star is visible from Earth. The planet orbits too close to its star to support life.
24 July 2015, 10:17 AM ET
A G2-type star (Kepler 452), the same class as the Sun, harbors the planet Kepler-452b. The planet is 60 percent larger than Earth and receives 10 percent more energy from its Sun than the Earth.
23 July 2015, 12:28 PM ET
Kepler-452b size is important because it receives 10 percent more energy from its Sun than we do from ours. That mass protects it from experiencing "runaway greenhouse effect and the loss of its water inventory," according to NASA.
23 July 2015, 09:46 AM ET
A simulation has been developed to show how the gravitational field of a black hole disrupts a star. As the star is ingested, an accretion disk of stellar material is formed.
18 July 2015, 09:00 AM ET
Rings of X-ray light flare and fade around an active black hole in a stunning new set of observations by NASA's Swift space telescope. The bull's-eye structure results from the reflection of X-ray light by dust, which creates a series of "echoes."
17 July 2015, 02:39 PM ET
"Buckyball" molecules appear to be commonplace across the universe, and may even be sources of organic molecules that are key to the origin and evolution of life, a new study suggests.
15 July 2015, 12:12 PM ET
The star HP 11915 is similar in mass and age to our Sun. Now a Jupiter-like world has been found orbiting it. The distance between this planet and its star is roughly the same as that between Jupiter and the Sun.
15 July 2015, 11:00 AM ET
Bold colors run like currents of water in a new map from Europe's Planck satellite, revealing the Milky Way galaxy in microwaves.
09 July 2015, 02:01 PM ET
A newfound giant black hole nearly as massive as 7 billion suns is dozens of times larger than astronomers expected given its host galaxy's size, researchers say. The finding may call most current models of galaxy formation into question.
09 July 2015, 01:45 PM ET
Hubble Space Telescope imagery of galaxy ESO 381-12 (a.k.a. PGC 4287) may show the after effects of a galactic merger. Telltale 'shells' of gas and dust could be results of "shock waves through its structure much like ripples in a pond."
04 July 2015, 07:00 AM ET
A cluster of bright, young blue stars shows up vividly against the red hydrogen gas of their surrounding stellar birthplace in a stunning photo out just in time for the Fourth of July.
27 June 2015, 12:00 PM ET
Look skyward around 11 p.m. local time this week to see an ancient star pattern almost directly overhead: the hero of legends, Hercules.
26 June 2015, 01:02 PM ET
Astronomers may have discovered an exoplanet that has found the elixir to planetary youth — streams of radiation from its white dwarf star, which could have knocked billions of years off its apparent age.
24 June 2015, 02:23 PM ET
Astronomers have detected carbon smog permeating the interstellar atmospheres of early galaxies, confirming that these ancient galaxies were mostly dust free. The discovery should shed light on how galaxies grew in the universe's early days.
24 June 2015, 12:20 PM ET
As GJ 436b, an exoplanet, crossed the face of its star, the Hubble Space Telescope detected a decrease in ultraviolet light as a huge cloud of hydrogen departed the doomed planet’s atmosphere.
12 June 2015, 06:43 AM ET
The night sky features a swan, an eagle, a dove, a crane, a toucan, a peacock, a bird of paradise and even a mythical phoenix. And over toward the south as night falls during these late spring evenings is yet another: Corvus, the Crow.
12 June 2015, 06:30 AM ET
A skywatcher's guide to the constellation Ursa Minor, also known as the Little Dipper or the Little Bear. Most people have never seen the Little Dipper, simply because most of its stars are too dim to be viewed through light-polluted skies.
01 June 2015, 05:30 PM ET
Borg-like assimilation may not be an interstellar reality, but having a resilient software system is essential to ensure your starship can cope with any scenario in the depths of space.
28 May 2015, 10:35 AM ET
The appearance of high-power, super-fast jets of plasma from supermassive black holes at the core of galaxies is a sign of recent – or presently continuing – merger with with another galaxy. Such jets emit powerful radio waves in opposite directions.
22 May 2015, 07:01 AM ET
A newfound galaxy 12.5 billion light-years from Earth is the most luminous one known in the universe, blazing more brightly than 300 trillion suns. The engine behind the galaxy's brilliance may be a supermassive black hole, researchers said.
22 May 2015, 07:01 AM ET
Observations by NASA's Hubble Space Telescope have revealed a disk of gas nearly 3 trillion miles wide surrounding Nasty 1, suggesting that the star's strange appearance and behavior may stem from an ongoing act of cosmic cannibalism.
19 May 2015, 05:43 PM ET
The Southern Cross has long been a celestial landmark for explorers and travelers to the lands below the equator. You can see the famous constellation now, but you must go farther south than 25 degrees north latitude.
21 April 2015, 01:38 PM ET
When a massive star dies, it re-seeds the universe with elements to form more complex stars. When astronomers witness these cataclysms, they begin to think differently about how the universe works. Watch ‘Secrets of the Universe’ on Hulu. http://www.
17 April 2015, 05:36 PM ET
Right now is a good time to look for Virgo, since the bright moon is not lighting up the evening sky. (Virgo may be very large, but most of her stars are rather dim.)
10 April 2015, 04:52 PM ET
Now that the bright moon has moved out of the evening sky, skywatchers have a great chance to view the early spring stars. And yet, even under dark skies, skywatchers will notice that there is something missing overhead: the Milky Way.
08 April 2015, 09:03 AM ET
A new photograph of a distant galaxy looks like it was the inspiration for the 'one ring' in 'The Hobbit,' but it's actually a cosmic phenomenon in which the light from one galaxy is bent into a circle by the gravity of another galaxy.
03 April 2015, 07:00 AM ET
NASA's Hubble Space Telescope has photographed a number of gas clouds that glow a ghostly green, thanks to radiation blasted out by superpowerful quasars. See the photos in this Hubble photo gallery.
03 April 2015, 07:00 AM ET
The eight objects betray the past presence of quasars, the most luminous objects in the universe, whose powerful beams of radiation lend the clouds their ethereal glow, researchers said.
25 March 2015, 02:01 PM ET
Giant winds from black holes can blast gas through galaxies at extraordinary speeds, pulling the plug on star formation, researchers say.