Space

Satellite galaxies at edge of Milky Way coexist with dark matter

Satellite galaxies at edge of Milky Way coexist with dark matter

A new research has ruled out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure.

The vast polar structure, a plane of satellite galaxies at the poles of the Milky Way, is at the center of a tug-of-war between scientists who disagree about the existence of mysterious dark matter, the invisible substance that, according to some scientists, comprises 85 percent of the mass of the universe.

Restoring Pluto's planetary identity in crisis

Restoring Pluto's planetary identity in crisis

A decade after Pluto was ousted from the planet lineup, a supporter of the now dwarf planet is fighting to restore its title.

Johns Hopkins University scientist Kirby Runyon wants to make one thing clear: Regardless of what one prestigious scientific organization says to the contrary, Pluto is a planet.

So, he said, is Europa, commonly known as a moon of Jupiter, and so is the Earth's moon, and so are more than 100 other celestial bodies in our solar system that are denied this status under the prevailing definition of "planet."

NASA's Van Allen Probes uncovers 'relativistic' electrons

NASA's Van Allen Probes uncovers 'relativistic' electrons

Earth's radiation belts, two doughnut-shaped regions of charged particles encircling our planet,were discovered more than 50 years ago, but their behaviour is still not completely understood.

Now, new observations from NASA's Van Allen Probes mission show that the fastest, most energetic electrons in the inner radiation belt are not present as much of the time as previously thought.

The results show that there typically isn't as much radiation in the inner belt as previously assumed, which is good news for spacecraft flying in the region.

NASA spacecraft's close call with Martian moon Phobos

NASA spacecraft's close call with Martian moon Phobos

NASA's Mars Atmosphere and Volatile Evolution Mission (MAVEN), which is in its second year of studying the Red Planet's atmosphere, was recently forced to perform unscheduled maneuver to avert a space-wreck.

In its first collision avoidance maneuver, MAVEN spacecraft carried out a rocket motor burn that boosted its velocity by 0.4 meters per second (less than 1 mile per hour) to steer clear of Mars' moon Phobos, NASA reported.

The correction was small, but it was enough for the spacecraft to avoid the crater-filled moon by about 2.5 minutes.

Meet 'Bernardbowen'- the new minor planet

Meet 'Bernardbowen'- the new minor planet

In a major development, a team of scientists have officially named a minor planet as 'Bernardbowen' that sits in the asteroid belt between Mars and Jupiter.

The minor planet was discovered on October 28, 1991, and until now has been known as (6196) 1991 UO4, but the name has been given by an Australian citizen science project 'theSkyNet', who won a competition to name the celestial body.

The planet was named by the International Centre for Radio Astronomy Research (ICRAR) in honour of their founding chairman Dr. Bernard Bowen.

NASA needs your help in finding new ninth planet

NASA needs your help in finding new ninth planet

New York [USA], Feb. 17 : NASA has called on the world to help it in the search for the new ninth planet, as anyone from a kindergartener to a 95-year-old, can participate in their new project to find the not-yet-discovered celestial body.

To let anyone participate in this search project of ninth planet, the Zooniverse space projects site has launched a NASA-funded venture, Backyard Worlds: Planet 9, reports CNN.

"There are really low barriers to entry," Dr. Laura Trouille of Zooniverse.

Two largest satellite galaxies Magellanic Clouds bridged by stars

Two largest satellite galaxies Magellanic Clouds bridged by stars

According to an international team of astronomers led by researchers from University Of Cambridge, the Magellanic Clouds, the two largest satellite galaxies of the Milky Way, appear to be connected by a bridge stretching across 43,000 light years.

The discovery is based on the Galactic Stellar census being conducted by the European Space Observatory, Gaia and reported in the journal Monthly Notices of the Royal Astronomical Society (MNRAS).

Universe could be a vast, complex hologram: Study

Universe could be a vast, complex hologram: Study

A study has provided, what researchers believe is the first observational evidence, that our universe could be a vast and complex hologram.

The researchers, from the University of Southampton (UK), University of Waterloo, Canada, Perimeter Institute (Canada), INFN, Lecce (Italy) and the University of Salento (Italy), have published findings in the journal Physical Review Letters.

Researchers discover planet-eating star, similar to Sun

Researchers discover planet-eating star, similar to Sun

In a recent research, a team of scientists from the University of Chicago has made the rare discovery of a planetary system with a host star similar to Earth's sun.

Published in the Astronomy and Astrophysics journal, what's most intriguing about the research is the star's unusual composition, which indicates it ingested some of its planets.

"It doesn't mean that the sun will 'eat' the Earth any time soon. But our discovery provides an indication that violent histories may be common for planetary systems, including our own," said Jacob Bean, co-author of the study.

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