While astronauts are excited for the upcoming Mars Mission, there is a threat too. A research claims that the round trip will expose space travellers to dangerously high levels of solar radiation that is estimated to shorten their lifespan by two years and a half.

Its Christmas months and besides celebration on the earth, the festivity will take place on the galaxy too. Just, a few days before the Christmas, a comet will be making a close pass of Earth on December 16. Tagged as 'Christmas Comet', it is believed to be the brightest comet of the year.

This December, the world is going to watch the most unpredictable sky event. Geminid meteor showers will take place and there can be up to 50 or 60 meteors per hour and it will not bother the clouds overhead or if there is too much moonlight.

Chinese scientists are planning to draw the clearest yet three-dimensional map of the intricate neurons and blood vessels in the human brain.

A SpaceX Dragon spacecraft carrying nearly 6,000 pound of research equipment, cargo and supplies has successfully launched to the International Space Station (ISS), NASA said on Thursday.

NASA's InSight lander, which touched down on Mars on November 26, has provided the first ever "sounds" of Martian wind on the Red Planet, the NASA said.InSight sensors captured a haunting low rumble caused by vibrations from the wind, estimated to be blowing between 10 to 15 mph (5 to 7 metres a second) on December 1, from northwest to southeast, NASA said on Friday. Citing NASA, Xinhua news agency reported the winds were consistent with the direction of dust devil streaks in the landing area, which were observed from orbit. "Capturing this audio was an unplanned treat," said Bruce Banerdt, InSight principal investigator at NASA's Jet Propulsion Laboratory in Pasadena, California. "But one of the things our mission is dedicated to is measuring motion on Mars, and naturally that includes motion caused by sound waves." According to NASA, two very sensitive sensors on the spacecraft detected these wind vibrations: an air pressure sensor inside the lander and a seismometer sitting on the lander's deck, awaiting deployment by InSight's robotic arm. The two instruments recorded the wind noise in different ways. The air pressure sensor, which will collect meteorological data, recorded these air vibrations directly. The seismometer recorded lander vibrations caused by the wind moving over the spacecraft's solar panels, which are each 7 feet (2.2 metres) in diameter and stick out from the sides of the lander like a giant pair of ears. This is the only phase of the mission during which the seismometer, called the Seismic Experiment for Interior Structure (SEIS), will be capable of detecting vibrations generated directly by the lander, said NASA. In a few weeks, it will be placed on the Martian surface by InSight's robotic arm, then covered by a domed shield to protect it from wind and temperature changes. It will detect the lander's movement through the Martian surface, said NASA. SEIS is recording vibrational data that scientists later will be able to use to cancel out noise from the lander when SEIS is on the surface, allowing them to detect better actual marsquakes. InSight landed safely at Elysium Planitia on Mars on November 26, kicking off a two-year mission to explore the deep interior of the Red Planet.

China launched a lunar probe on Saturday which is expected to make the first-ever soft landing on the far side of the moon.

Scientists keep on observing if there is traces which could indicate extraterrestrial life in the universe. Recently, an expert from NASA says that aliens may have already visited Earth but we humans missed to notice their arrival.

In a new development, scientists have detected huge collision between two black holes in a distant galaxy. The gravitational waves from the collision are leading to the formation of a new, huge black hole 80 times larger than our sun.

SpaceX has launched its Falcon 9 rocket carrying 64 small satellites into low orbit around the Earth. Indeed, Elon Musk, the founder of the space agency has set a new record in the US.