A mysterious light object in the sky, called "The Cow", was captured in real time by telescopes around the world. Astronomers believe that it could be the birth of a black hole or a neutron star or a new class of objects.
An illustration shows the discovery of a repetitive rapid line break from a mysterious source of 3 billion light years from Earth.
This is an artist's illustration of the most remote solar system object still observed, 201
Comet 46P / Wirtanen will pass within 7 million miles of Earth on December 16. The ghostly green coma is the size of Jupiter, although the comet itself is about three quarters of a mile in diameter.
This mosaic image of the asteroid Bennu consists of 12 PolyCam images collected on December 2 by the OSIRIS-REx spacecraft from an area of 15 miles.
This image of a global cluster of stars by the Hubble Space Telescope is one of the oldest collections of stars known. The gap, called NGC 6752, is more than 10 billion years old.
An image of Apep captured by the VISIR camera on the very large telescope of the European Southern Observatory. This "pinwheel" star system is probably doomed to end up in an old x-ray burst.
An artist's impression of the galaxy Abell 2597, which shows the supermassive black hole radiating cold molecular gas as the pump of a giant intergalactic fountain
An image of the Wild Duck Cluster, where each star is about 250 million years old.
These images reveal the final step in a connection between pairs of galactic nuclei in the moving nuclei of colliding galaxies.
A radio image of hydrogen gas in the small magellanic cloud. Astronomers believe that the dwarf galaxy dies slowly and in the future will be consumed by the Milky Way galaxy.
Further evidence of a supermassive black hole in the middle of the Milky Way galaxy has been found. This visualization uses data from simulations of orbital motion of gas that swirls about 30% of the speed of light in a circular orbit around the black hole.
Does this look like a bat? This giant shadow comes from a bright star reflecting on the dusty disc surrounding it.
Hey, Bennu! NASA's OSIRIS-REx mission, headed for the primitive asteroid Bennu, returns images as it approaches its December 3 target.
These three panels reveal a supernova before, during and after it happened 920 million light-years from Earth (from left to right). Supernova, duplicate iPTF14gqr, is unusual, because even though the star was massive, its explosion was fast and weak. Scientists believe this is due to a companion who sipped away his mass.
This is an artist's illustration of what a Neptune-size moon would look like encircling the giant exoplanet Kepler-1625b in a star system 8,000 light-years from Earth. It may be the first exomone ever discovered.
An artist's illustration of Planet X, which could shape the orbit of less-extreme remote solar system objects such as the 2015 TG387.
This is an artist's concept that SIMP J01365663 + 0933473 may look like. It has 12.7 times the mass of Jupiter but a magnetic field 200 times more powerful than Jupiter. This object is 20 light years from Earth. It lies on the border between being a planet or a brown dwarf.
The Andromeda Galaxy cannibalizes and shreds the single galaxy M32p, which leaves this compact galaxy residue called M32. It is completely unique and contains a variety of young stars.
Twelve new moons have been found around Jupiter. This graphic shows different groupings of the moons and their paths, with the newly discovered ones being shown in bold.
Scientists and observatories around the world could trace a high energy neutrino to a galaxy with a super-massive, fast-spinning black hole in the center, known as a blazar. The galaxy sits to the left of the Orion's axis in its constellation and is about 4 billion light-years from Earth.
Oumuamua, the first observed interstellar visitor to our solar system, is shown in an artist's illustration.
Planets not only look out of thin air – but they do not require gas, dust and other processes completely understood by astronomers. This is an artist's impression of which "infant planets" surround a young star.
These negative images of 2015 BZ509, which are circled in yellow, show the first known interstellar objects that have become a permanent part of our solar system. The exo-asteroid probably entered our solar system from another star system 4.5 billion years ago. It then went into a retrograde orbit around Jupiter.
A closer look at the diamond matrix of a meteorite that landed in Sudan in 2008. This is considered the first proof of a proto-planet that helped shape the earthly planets of our solar system.
2004 EW95 is the first colise asteroid that has been confirmed to exist in the Kuiper belt and a relic of the primordial solar system. This curious object was probably formed in the asteroid belt between Mars and Jupiter before being thrown billions of miles to its present home in the Kuiper belt.
NASA / ESA Hubble Space Telescope celebrates 28th anniversary in space with this amazing and colorful image of the Nebula 4000 light-years lagoon from Earth. While the entire nail is 55 light-years over, this image reveals only part of about four light-years.
This is a more star-filled view of the lagoon block, using Hubble's infrared properties. The reason you can see more stars is that infrared can cut through dust and gas clouds to reveal abundance of both young stars in the nebula, as well as more distant stars in the background.
The rosebud is 5000 light years from the earth. The distinctive nebula, which any statement looks like a skull, has a hole in the middle that creates an illusion of its rose-like shape.
KIC 8462852, also known as Boyajians Star or Tabby's Star, is 1000 light years away from us. It is 50% larger than our sun and 1000 degrees warmer. And it does not behave like any other star, fog and shining sporadically. Dust around the star, depicted here in an artist's illustration, may be the most likely cause of its strange behavior.
This inner slope of a martyrdom has several of the seasonal dark lines called "recurring slope lines" or RSL, that a November 2017 report interprets as granular flows, rather than darker due to liquid water. The image is from the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
This artist's impression shows a supernova explosion, which contains the brightness of 100 million suns. The supernova iPTF14hls, which has exploded several times, can be the most massive and longest lasting ever observed.
This illustration shows hydrocarbon compounds which are split into hydrocarbon and hydrogen within ice cream giants, such as Neptune, and become a "diamond rain".
This striking image is the star chamber of the Orion Nebula, where the stars were born. The red filaments are a stretch of ammonia molecules that measure 50 light years. The blue represents the gas in the Orion Nebula. This image is a composition of observation from Robert C. Byrd's Green Bank Telescope and NASA's Widescreen Infrared Survey Explore Telescope. "We still do not understand in detail how large clouds of gas in our galaxy collapse to form new stars," says Rachel Friesen, one of the co-researchers. "But ammonia is an excellent trace of dense star-forming gas."
This is how the earth and the moon look out from Mars. The image is a compound of the best earth image and the best moon image taken on November 20, 2016, by NASA's Mars Reconnaissance Orbiter. The orbiter's camera takes pictures in three wavelength bands: infrared, red and blue green. Mars was about 127 million miles from Earth when the pictures were taken.
PGC 1000714 was originally considered a common elliptical galaxy, but a more detailed analysis revealed the incredibly rare discovery of a galaxy by Hoag. It has a round core surrounded by two freestanding rings.
NASA's Cassini spacecraft took these pictures of the planet's mysterious hexagonal jet stream in December 2016. The hexagon was discovered in images taken by the Voyager spacecraft in the early 1980s. It is estimated to have a diameter that is wider than two soils.
A death star emits a green glow in this Hubble Space Telescope image of Crab Nebula, which lies about 6,500 light-years from Earth in the Taurus constellation. NASA released the image for Halloween 2016 and played the theme in its press release. The agency said the "ghoulish-looking object still has a pulse". In the middle of the crab Nebula is the crushed core, or "heart" of an exploded star. The heart spins 30 times per second and produces a magnetic field that generates 1 trillion volts, NASA said.
Peering through the thick dust shroud of the galactic bolt, an international team of astronomers revealed the unusual blend of stars in the star cluster called Terzan 5. The new results indicate that Terzan 5 is one of the bolt's primordial building blocks, probably the relativity of the Winter's very early days.
An artist's idea of Planet Nine, which would be the longest planet in our solar system. Similar cluster paths of extreme objects on the edge of our solar system suggest a massive planet there.
An illustration of the paths of the new and previously known extremely remote Solar System objects. The clustering of most of their paths indicates that they are likely to be affected by something massive and very distant, the proposed Planet X.
Say hello to the dark galaxy Dragonfly 44. Like our Milky Way, it has a halo of spherical clusters of stars around the core.
A classic nova occurs when a white dwarf star gets a question from his secondary star (a red dwarf) over a period of time, causing a thermonuclear reaction on the surface which ultimately erupted into a single visible eruption. This creates a 10,000-fold increase in brightness, depicted here in an artist's rendering.
Gravitational lenses and space twists are visible in the image of nearby and distant galaxies trapped by Hubble.
In the middle of our galaxy, the Milky Way, the researchers discovered an X-shaped structure in a tightly packed group of stars.
Meet UGC 1382: Which astronomers thought a normal elliptical galaxy (left) was actually shown to be a massive disc galaxy consisting of different parts when viewed with ultraviolet and deep optical data (center and right). At a complete return of normal galaxy structure, the center is younger than its outer spiral disc.
NASA's Hubble Space Telescope captured this image of the crab nebula and its "beat heart", which is a neutron star to the right of the two bright stars in the center of the image. The neutron star pulses 30 times per second. The colors of the rainbow are visible due to the movement of the material in the nail which occurs during the fall of the image.
The Hubble Space Telescope captured an image of a hidden galaxy that is weaker than the Andromeda or Milky Way. This low-surface galaxy, called UGC 477, is over 110 million light-years away in the constellation of Pisces.
On April 19, NASA released new images of light craters at Ceres. This photo shows the Haulani crater, which has evidence of landslides from the rim. Scientists believe that some craters on the dwarf planet are bright because they are relatively new.
This illustration depicts millions of dust grains NASA's Cassini spacecraft has collated near Saturn. A few dozen of them seem to have come from our solar system.
This image from the VLT Survey Telescope at ESO's Paranal Observatory in Chile shows an amazing concentration of galaxies called Fornax Cluster, located in the southern hemisphere. In the middle of this cluster is located in the middle of the three bright blobs on the left side of the image a CD galaxy – a galactic cannibal that has increased in size by consuming smaller galaxies.
This image shows the central region of Tarantula Nebula in the Great Magellanic Cloud. The young and dense star cluster R136, which contains hundreds of massive stars, is visible at the bottom right of the image taken by the Hubble Space Telescope.
In March 2016, astronomers published a paper on powerful red flashes coming from binary system V404 Cygni in 2015. This illustration shows a black hole, similar to that in V404 Cygni, which consumes material from a groundbreaking star.
This image shows the elliptical galaxy NGC 4889, deeply embedded in the Coma galaxy. There is a giant supermassive black hole in the center of the galaxy.
An artist's impression of 2MASS J2126, which takes 900,000 years to pave its star, 1 trillion miles away.
Caltech researchers have found evidence of a giant plan that traces a bizarre, very elongated orbit in the outer solar system. The object, nicknamed Planet Nine, has a mass of about 10 times that of the Earth and orbits about 20 times longer from the Sun on average than does Neptune.
An artist's impression of what a black hole can look like. In February, researchers in China said they had discovered a super-massive black hole 12 billion times the size of the sun.
Are there oceans on any of Jupiter's moons? The juice probe shown in this artist's impression is to find out. Image courtesy of ESA / AOES
Astronomers have discovered powerful auroras on a brown dwarf that is 20 light-years away. This is an artist's concept of the phenomenon.
Venus, the bottom and Jupiter shine brightly over Matthews, North Carolina, Monday, June 29. The obvious near the meeting, called a conjunction, has given a dazzling view in the summer sky. Although the two planets seem to be close together, they are in reality millions of miles apart.
Jupiter's icy moon Europe may be the best place in the solar system to look for extraterrestrial life, according to NASA. The moon is about the moon of the earth and there is evidence that there is a sea under its frozen crust that can hold twice as much water as the earth. NASA's 2016 budget includes a $ 30 million request to plan a mission to investigate Europe. The picture above was taken by Galileo spacecraft on November 25, 1999. It is a 12-frame mosaic and is considered the best image yet on Europe's side facing Jupiter.
This nebula or cloud of gas and dust is called RCW 34 or Gum 19. The brightest areas you can see is where the gas is heated by young stars. Eventually the gas bursts out like champagne after a bottle of uncooked. Researchers call this champagne flow. This new image of the nebula was captured by the European Space Agency's very large telescope in Chile. RCW 34 is in the constellation Vela in the southern sky. The name means "sailing on a ship" in Latin.
Hubble Space Telescope captured images of Jupiter's three great moons – Io, Callisto and Europe – immediately.
With powerful optics, astronomers have found a planet-like body, J1407b, with rings 200 times the size of Saturn. This is an artist's portrayal of the ring in the plane J1407b, which darkens a star.
A patch of stars seems to be missing in the image from the La Silla Observatory in Chile. But the stars are actually behind a cloud of gas and dust called Lynds Dark Nebula 483. The cloud is about 700 light years from Earth in the constellation Serpens.
This is the largest Hubble Space Telescope image ever mounted. It's part of the galaxy nearby, Andromeda (M31).
NASA has captured an amazing new image of the so-called "Pillars of Creation", one of the agency's most iconic discoveries. The giant columns of cold gas, in a small region of the ear nebula, were populated by a similar image taken by the Hubble Space Telescope in 1995.
Astronomers using the Hubble Space merged this image showing a small portion of space in the Southern Hemisphere Fornax constellation. . Within this deep space picture are 10,000 galaxies, which go back in time as far as a few hundred million years after the storm.
Planetary nebula Abell 33 seems ring-like in this picture, taken with the help of the European Southern Observatory's Very Large Telescope. The blue bubble was created when an aging star shed their outer layers and a star in the foreground happened to adapt to it to create a "diamond engagement ring" effect.
This Hubble image sees a liquid marble or perhaps a giant, disembodied eye. But it's actually a nebula with a giant star in the center. Scientists believe the star used to be 20 times more massive than our sun, but it dies and is intended to go supernova.