Two habitable planets that could support life discovered

Agencies
June 19, 2019

Two exoplanets that have been discovered, which are warm similar to Earth and may have water, could be alternatives 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 Celsius and 100 degree Celsius, 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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News Network
October 28,2024

Bengaluru: The Enforcement Directorate on Monday undertook fresh searches in connection with the Mysuru Urban Development Authority (MUDA) linked money laundering case in which it has booked Karnataka Chief Minister Siddaramaiah, official sources said.

About seven-eight premises in Bengaluru and Mysuru are being covered, the sources said.

The federal agency had conducted the first round of raids in this case on October 18 when it searched the MUDA office in Mysuru and some other locations.

It also questioned some lower-rank officials of the MUDA at its Bengaluru zonal office last week.

The ED has filed a enforcement case information report (ECIR) under the Prevention of Money Laundering Act (PMLA) to book the CM and others taking cognisance of a Lokayukta FIR.

Siddaramaiah is facing Lokayukta and ED probes into alleged irregularities in the allotment of 14 sites to his wife by the MUDA.

Siddaramaiah's wife Parvathi B M, brother-in-law Mallikarjuna Swamy, Devaraju -- from whom Mallikarjuna Swamy purchased land and gifted it to Parvathi -- and others are named as other accused in the case by the two probe agencies.

Parvathi was recently questioned by the Lokayukta.

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News Network
October 21,2024

leopard.jpg

Mangaluru: Forest officials successfully captured a leopard that strayed into the kitchen of a house in Akkasaligara Keri, Mulki, on the outskirts of Mangaluru, during the early hours of Sunday, October 20.

Following multiple complaints from residents about leopard sightings, forest department officials had placed cages at various locations in Mulki. According to Deputy RFO Manjunath Ganiga, locals had reported spotting a leopard in the area, prompting the department to set up a cage about a kilometer from the affected house.

At approximately 10 p.m., the leopard entered the house and made its way into the kitchen. The family quickly locked the kitchen door and contacted the forest department for assistance. The forest officials, using a cage and a net, managed to trap the leopard around 2:45 a.m. The animal was later examined by veterinarians and released back into the wild.

Locals suspect that up to three leopards may be roaming the area.

The operation to capture the leopard was led by RFO Kiran Kumar, with assistance from Deputy RFOs Nagesh Billava and Manjunath Ganiga, along with forest department staff members Chandrashekar and Shankar.

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News Network
October 25,2024

Udupi, Oct 25: A team of police from Udupi apprehended a Non-Resident Indian (NRI) at Kannur International Airport, Kerala, after he had been absconding overseas since 2019. 

Ashmath Ali (35) originally arrested on charges of recording a video of unnatural acts, had been out on bail granted by the second ACJ and JMFC court of Udupi on September 6, 2019.

Despite 18 arrest warrants issued in his name, Ali managed to evade authorities for years, frequently traveling abroad. 

Acting on a tip-off, sleuths from Kaup police station intercepted him as he landed at Kannur International Airport on October 21, marking the end of his prolonged evasion from Indian law enforcement. 

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