Space science
At 250 million light-years in diameter, how massive is the Boötes void?
The Boötes void or giant void is a very large, nearly spherical region containing very few galaxies. It is located in the vicinity of the constellation Boötes.
Light Year
Browse ScienceInfo articles and explainers related to Light Year.
Topic archive
Articles about Light Year
96 published items.
Space science
Habitable planet discovered 40 light years from Earth
Scientists have discovered an exoplanet called Gliese 12 b in the constellation Pisces that has conditions suitable for life.
Space science
'Signs of life' found 1,000 light years from Earth
NASA's Spitzer Infrared Space Telescope has picked up the signal of tryptophan in the middle of a
Space science
9 billion light years away, 'space hole' facing Earthlings
Fifteen times larger than the full moon from Earth's perspective, the ghostly object's appearance has upset the laws of cosmology.
Space science
The nearest black hole discovered is only 150 light years from Earth
Simulation results show that there are 2-3 black holes hidden in the Hyades cluster that are closer to Earth than the two previous record-holders.
Space science
'Child of Big Bang' appears 33 billion light years from Earth
With the help of the galaxy cluster
Space science
Object 19.5 billion light years away 'travels through space' to Earth
In a rare moment, the ancient object transformed into
Space science
America catches strange signal from 1.3 billion light years away from Earth
The faintest radio burst ever detected by humanity could help solve the long-standing mystery of this spooky cosmic signal.
Archeology
Cosmic rays shed light on 7,000-year-old Greek village
A powerful cosmic ray caused a spike in radiocarbon levels in an area of Greece in 5259 BC.
Discover science
The age of the universe is about 13.8 billion years but why can we observe 93 billion light years?
Is there something wrong with the big bang theory, or is the theory of relativity itself wrong?
Space science
Mysterious repeat radio flash, 3 billion light-years from Earth
Astronomers have detected a mysterious repeating series of radio bursts (FRBs), emanating from a dwarf galaxy 3 billion light-years from Earth.
Space science
'Second Jupiter' discovered 17,000 light-years from Earth
Analysis of a trove of old image data from the Kepler space telescope reveals a gas giant exoplanet very similar to Jupiter.
Space science
A photo of a mysterious circle one million light-years wide
The MeerKAT Radio Telescope has sent back to Earth a stunning update of the mysterious radio circle known as ORC1.
Space science
Portrait of 'A-Cen Earth' habitable, only 4.37 light-years away
Of the two other solar systems closest to Earth, there must be a rocky, habitable planet that has designed its basic portrait: Earth α-Cen.
Space science
Photograph of a merging galaxy 681 million light-years away
Observations from space and ground telescopes provide a stunning view of the three-galactic collision known as IC 2431.