Two planets that could support life discovered
Madrid: Two exoplanets that have been discovered, which are warm similar to Earth and may have water, could be good candidates to support life, according to a study on Tuesday.
Scientists have been searching for planets close to nearby stars since 2016 using a 3.5-meter telescope.
Images captured at the Calar Alto Observatory in Almeria, southern Spain, and two other Spanish telescopes allowed researchers to analyse, in great detail, the Teegarden star -- a cold red dwarf only around 12.5 light years away from our solar system, Efe news reported.
"Teegarden only has eight per cent of our sun's mass," said Ignasi Ribas, co-author of the study. "It is much smaller and much less brighter than the Sun. In fact, despite being very close to the Earth it was not discovered until 2003," Ribas said.
The temperature of the star is around 2,600C (the Sun's temperature is 5,500C) and because it is 10 times smaller, it's 1,500 times weaker and radiates mostly infrared waves.
Once the star was found, scientists used the Doppler technique, also known as the wobble method, which uses radial-velocity measurements of the parent star to detect planets around it.
The Doppler technique detected at least two signals, which have now been identified as planets Teegarden b and Teegarden c.
Teegarden b has the mass similar to Earth and orbits the star every 4.9 days. The second planet takes 11.4 days to complete the orbit, which is the length of its year.
"In other words, they are much closer to their (parent) star than the Earth is to the Sun," Ribas said.
"Teegarden, the more internal one, receives 10 per cent more light than we do from the Sun, that's why we think it may be too hot and may not have water. But this is just speculation because there are elements of its climate that we don't know and that could mean there could be liquid water," he continued.
Teegarden hovers in the midst of a habitable zone, which means the temperature on its surface is between 0 degree Celcius and 100 degree Celcius, meaning it could very well have water on surface.
What scientists are excited about is that both exoplanets are excellent candidates to support life, alongside Proxima, which to date was the planet that presented the best conditions for habitability.
Experts believe between the closest star to our solar system -- Proxima Centauri that is four light years away, and Teegarden (the 24th furthest away at 12 light years) -- there are dozens of stars, some with planets orbiting them, but "apart from Proxima, none of them present ideal conditions (for life)," Ribas said.
Researchers have not ruled out the possibility of there being more planets orbiting Teegarden, but the system would have to be observed in more detail. "These planets are of great interest in order to search for life in the mid-term," Ribas said.
Without doubt, for the scientist, the forthcoming decade will be thrilling and key in space exploration and the search for suitable terrestrial exoplanets.
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38.23% voter turnout during the first half of the day in 14 LS segments in Karnataka
Bengaluru (PTI): An estimated 38.23 per cent turnout was reported during the first half of the day in Karnataka, where the first phase of Lok Sabha polls in 14 of 28 constituencies is underway on Friday.
According to election officials, 38.23 per cent of the electorate in Karnataka had cast their vote till 1 PM. Voting began at 7.00 am and will end by 6.00 pm.
Out of 14 segments that are going to the polls today, the highest turnout of 48.10 per cent was recorded in Dakshina Kannada, followed by Udupi-Chikmagalur 46.43 per cent, and the least 30.10 per cent in Bangalore Central.
The turnout was 31.51 per cent in Bangalore South, and 32.25 per cent in Bangalore North.
In the first phase, the Congress is contesting in all 14 seats, BJP has fielded nominees in 11 and its alliance partner JD(S), which joined the National Democratic Alliance in (NDA) in September last year, in three -- Hassan, Mandya and Kolar.
Besides those three, the segments where elections are being held on Friday are Udupi-Chikmagalur, Dakshina Kannada, Chitradurga, Tumkur, Mysore, Chamarajanagar, Bangalore Rural, Bangalore North, Bangalore Central, Bangalore South and Chikkaballapur.
In the 2019 Lok Sabha polls, the Congress and JD(S), which were in alliance and in power in the state back then, had secured just one seat each in these 14 segments. The BJP had won in 11 and ensured the victory of a party supported independent candidate in Mandya.
On Friday, Deputy Chief Minister and state Congress President D K Shivakumar along with his family cast his vote at Doddalahalli in Kanakapura of Ramanagara district. Mandya MP Sumalatha Ambareesh also cast her vote.
Cricketing legend Anil Kumble, Ayodhya Ram Mandir's Ram lalla sculptor Arun Yogiraj and former Lokayukta Justice Santosh Hegde were among prominent persons who cast their votes during the day, along with IT industry veterans Kris Gopalakrishnan and Mohandas Pai.
Biotechnology veteran Kiran Mazumdar-Shaw of Biocon, after casting her vote, in a post on social media platform X said, "As a responsible citizen of our great country, I have cast my vote. Jai hind"
Film stars Upendra, Shivarajkumar and Sudeep too exercised their franchise during the first half of the day.
