Is 'Planet 9' Really a Second Massive Kuiper Belt?

The Kupier Belt is a massive collection of dwarf planet and asteroid-sized worlds orbiting far past Neptune. Is the hypothetical Planet 9 really a second such belt? Image Credit: T. Pyle (SSC)/JPL-Caltech/NASA

The Kuiper Belt is a massive collection of dwarf planet- and asteroid-sized worlds orbiting far past Neptune. Is the hypothetical Planet 9 really a second such belt? Image Credit: T. Pyle (SSC)/JPL-Caltech/NASA

The announcement of a possible large ninth planet in our Solar System way beyond Neptune last month caused a lot of excitement, […]

Has 'Planet X' Finally Been Found? A Cautionary Tale

Artist's conception of Planet Nine. Image Credit: Image: Caltech/R Hurt (IPAC)

Artist’s conception of Planet Nine. The new evidence is the best so far that a massive planet exists far past Neptune in the outer Solar System. Image Credit: Caltech/R. Hurt (IPAC)

For a long time now, there have been theories and rumors regarding the possible existence of another planet in our Solar System, far […]

Mystery Deepens: New Study Shows Comets Don't Explain Odd Dimming of Kepler's 'Weird Star'

The mystery surrounding KIC 8462852 may not involve comets after all, but it is still an enigma for astronomers. Image Credit: NASA

The mystery surrounding KIC 8462852 may not involve comets after all, but it is still an enigma for astronomers. Image Credit: NASA/JPL-Caltech

As has been reported previously on AmericaSpace, and elsewhere, there is something weird going on around a star which is a little over 1,400 light-years away. Astronomers are still baffled as to […]

Development of Freeform Optics Technology May Revolutionize Space Telescopes

A young astronomer observes Comet C/2011 L4 (PANSTARRS) during a public outreach program at the Seminole State College Planetarium in central Florida March 16, 2013. Photo Credit: Mike Killian / AmericaSpace

A young astronomer observes Comet C/2011 L4 (PANSTARRS) during a public outreach program at the Seminole State College Planetarium in central Florida March 16, 2013. Photo Credit: Mike Killian / AmericaSpace

In the world of telescopes, light gathering power is dictated by the physical size of the first mirror or lens exposed to the […]

GJ 1132b: Nearest Earth-Sized Exoplanet Discovered So Far May Be a 'Venus Twin'

Artist's conception of GJ 1132b, an Earth-sized exoplanet orbiting a nearby star. Conditions on this world, however, are more like Venus than Earth. Image Credit: Dana Berry

Artist’s conception of GJ 1132b, an Earth-sized exoplanet orbiting a nearby star. Conditions on this world, however, are probably more like Venus than Earth. Image Credit: Dana Berry

Astronomers have discovered another Earth-sized exoplanet that is the closest one to our own Solar System found so far, but it might not be a nice place […]

Hubble Observes Largest Group of Faintest and Earliest Galaxies Ever Seen

Hubble view of a galaxy cluster containing some of the smallest and youngest galaxies ever observed. Image Credit: NASA/ESA/HST Frontier Fields team (STScI)

Hubble view of a galaxy cluster containing some of the smallest and youngest galaxies ever observed. Image Credit: NASA/ESA/HST Frontier Fields team (STScI)

Peering ever further back in space and time, the Hubble Space Telescope has glimpsed the largest known group of the faintest and youngest primordial galaxies ever—over 250—some of which are estimated […]

Unusual Fast-Moving 'Ripples' Discovered in Planetary Debris Disk Surrounding Nearby Star

Hubble and VLT images of the "ripples" within the debris disk surrounding the young star AU Microscopii. Image Credit: ESO/NASA/ESA

Hubble and VLT images of the “ripples” within the debris disk surrounding the young star AU Microscopii. Image Credit: ESO/NASA/ESA

Planetary debris disks, or protoplanetary disks, are some of the most interesting phenomena in astronomy – these giant clouds of dust and gas surrounding young stars are the birthplaces of new planets. Now, astronomers […]

Onward!: NASA Selects Next Destination for New Horizons in Kuiper Belt

Artist's conception of New Horizons at 2014 MU69. Image Credit: NASA/JHUAPL/SwRI/Alex Parker

Artist’s conception of New Horizons at 2014 MU69. Image Credit: NASA/JHUAPL/SwRI/Alex Parker

It has been nearly a month and a half since the historic flyby of Pluto by the New Horizons spacecraft, and now the mission team has selected its next target for exploration: a small Kuiper Belt object (KBO) known as 2014 MU69, which […]

Testing Panspermia: Searching for 'Bubbles of Life' in the Galaxy

Does life spread through the galaxy like an infectious disease, with "bubbles" of inhabited planets? Image Credit: Harvard-Smithsonian CfA

Does life spread through the galaxy like an infectious disease, with “bubbles” of inhabited planets? Image Credit: Harvard-Smithsonian CfA

We still don’t know if there is life elsewhere in the universe, but scientists are working on techniques to better understand how it may have originated anyway, in the event that such alien biology is […]

New Color Images Show 'Two Faces' of Pluto and Odd Dark Spots Along Equator

New color images of Pluto sent back by New Horizons showing two different "faces" or hemispheres of the dwarf planet and its largest moon Charon. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

New color images of Pluto sent back by New Horizons showing two different “faces” or hemispheres of the dwarf planet and its largest moon Charon. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

First there were the unusual bright spots on Ceres, which are still awaiting an explanation, and now as New […]