Massive Asteroid Makes Close Approach to Earth
Astronomers worldwide have issued a warning about an imposing celestial object known as '2013 NK4', set to make a close approach to Earth
Two planets that orbit around a star like our own sun could support life, according to new research, reported The Independent.
The two worlds at the edges of star Tau Ceti's "habitable zone" are part of a system of planets that are similar in size to our own. That is a breakthrough because it suggests that we might soon be able to find other planets that are habitable like our own Earth, researchers said.
The proximity of the planets and their similarity to Earth mean that they could eventually be a home for humans, according to the astronomers behind the research. But doing so might be a risky expedition.
The star appears to be circled by a huge disc of debris, which could suggest the worlds are being regularly hit by asteroids and comets.
Astronomers are especially excited by the discovery because the planets are as small as 1.7 times our size. That makes them the smallest worlds ever found around a star like our own sun, and has knock-on effects for the search for other planets like ours.
Their size was found by observing how much of a "wobble" the planets could exert over their nearby star. As planets pass by their sun, they lead it to move a little – and the size of that movement can be seen in the light that comes to Earth from the star.
Smaller planets require extra precision since the wobble is smaller and they can be harder to spot. And that precision is important to our ability to find other places that we – or other, alien life – could eventually live.
Sun-like stars hold out the best hope of finding planets beyond the solar system that host life. Tau Ceti, a favourite destination of science fiction writers, is very similar to the sun both in size and brightness.
We need your support so Novinite.com can keep delivering news and information about Bulgaria! Thank you!
Two infants from Kyustendil have tragically lost their lives after contracting whooping cough
Sofia's Lunar Festival of Lights is back, illuminating the city with more than 20 captivating light installations across its most iconic landmarks.
Overnight, rainfall across the country will temporarily cease, with some areas experiencing breaks in the clouds
The World Health Organization (WHO) has issued a stark warning regarding the spread of bird flu (H5N1) to various species, including humans, expressing deep concern over its impact and potential consequences
Today marks the commemoration of the holy martyr Victor, celebrated by Christians worldwide
Seventh-grader Kaloyan Geshev from Sofia's 125 SU "Boyan Penev" school has once again showcased his remarkable talent in speed calculation, clinching the title of three-time champion in mental math
UN Happiness Report: Bulgaria's Astonishing Leap in Rankings
Bulgaria: 3 Regions With Lowest Life Expectancy - EU Report 2022