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Al Mayadeen's correspondent: Two were martyred in an initial toll of the Israeli drone strike that targeted the al-Asira neighborhood in the city of Baalbek, eastern Lebanon
Al Mayadeen's correspondent: An Israeli drone strike targeted the al-Asira neighborhood east of Baalbek, eastern Lebanon
Sheikh Naim Qassem to the pager attack survivors: You are the greatest resistance. Know that 'Israel' will fall because it embodies aggression, crime, and occupation; victory is truly yours
Sheikh Qassem to the pager attack survivors: The value of what you are doing despite your wounds is immense, and here you are, treading the path of the Master of Nation's Martyrs and the leaders
Sheikh Qassem to the pager attack survivors: You are moving forward with insight deeper than sight itself. The enemy sought to eliminate your role in the battle, yet you remain steadfast and continue the fight
Hezbollah Secretary-General Sheikh Naim Qassem to the pager attack survivors one year later: You are healing from your wounds and rising above them. You have successfully passed the test
Palestinian media: Reports of stabbing operation in occupied al-Quds.
Israeli media: Sirens blare in Arava in South, near Ramon Airport.
Egyptian PM Mostafa Madbouli: Egypt is targeted in plans to redraw regional map
AEOI Chief Mohammad Eslami: Our presence in IAEA General Council and fact-checking helped in preventing unilateral rhetoric that aims to portray Iran as an unregulated country

NASA discovers second Earth-sized planet in 'habitable zone'

  • By Al Mayadeen English
  • Source: Agencies
  • 12 Jan 2023 14:18
3 Min Read

NASA scientists discover the fourth planet in the TOI 700 system that could have liquid water on it.

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  • The TOI 700 e (NASA)
    The TOI 700 e (NASA)

Using data from the Transiting Exoplanet Survey Satellite, NASA scientists have discovered a world that is likely rocky and 95% of the size of Earth called TOI 700 e, which is orbiting around a star and could have liquid water on it.

According to NASA, this is the fourth planet discovered in the TOI 700 system after TOI 700 b, c, and d. TOI 700 is a star that the planets orbit around, but only d and e orbit in the habitable zone, which is the range of distance from a star where liquid surface water could be present at some point in a planet’s history.

"This is one of only a few systems with multiple, small, habitable-zone planets that we know of," highlighted Emily Gilbert, a postdoctoral fellow at NASA's Jet Propulsion Laboratory in Southern California, adding that this "makes the TOI 700 system an exciting prospect for additional follow up."

Gilbert, who led the work, pointed out that the newly discovered planet e is 10% smaller than planet d, adding that TOI 700 e takes 28 days to orbit its star, while d takes 37 days.

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It is noteworthy that the team discovered the planets during Transiting Exoplanet Survey Satellite (TESS) observations, which were designed to discover additional planets and stars. The satellite monitors large swaths of the sky called sectors for approximately 27 days at a time.

"If the star was a little closer or the planet a little bigger, we might have been able to spot TOI 700 e in the first year of TESS data," said Ben Hord, a graduate researcher at NASA's Goddard Space Flight Center. "But the signal was so faint that we needed the additional year of transit observations to identify it," he indicated.

According to NASA, TESS has created imaging for about 75% of the sky and found 66 new exoplanets or worlds beyond the Earth's solar system.

Gilbert said that the new discovery of TOI 700 e proves that TESS can help "us find smaller and smaller worlds."

NASA explained that "finding other systems with Earth-size worlds in this region helps planetary scientists learn more about the history of our own solar system."

Read more: Humans to live and work on moon by 2030: NASA

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  • James Webb Telescope
  • NASA
  • solar system

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