Three Potential Super-Earths Discovered Around Star 55 Light-Years from Earth
Astronomers led by Dr. Shweta Dalal discovered three "super-Earth" exoplanets orbiting HD 48498, one potentially habitable. Using HARPS-N, they found planets with 5 to 11 Earth masses, offering insights into distant planetary systems.
Read original articleA team of astronomers, led by Dr. Shweta Dalal from the University of Exeter, has discovered three potential "super-Earth" exoplanets orbiting the nearby star HD 48498. These planets, with orbits of 7, 38, and 151 Earth days, include one in the habitable zone where liquid water could exist. The discovery, made using the HARPS-N Rocky Planet Search program, marks a significant step in finding habitable planets around Sun-like stars. The study, published in MNRAS, details the identification of these planets with masses ranging from 5 to 11 times that of Earth. The proximity of the star and the favorable orbit of the outermost planet make this system a promising target for future studies. Dr. Dalal emphasized the importance of advanced techniques and long-term monitoring in uncovering distant star system secrets. This discovery provides new insights into planetary systems and the potential for life beyond our solar system.
Related
Astronomers see a black hole awaken in real time
A massive black hole in galaxy SDSS1335+0728 has unexpectedly awakened, transforming it into an active galactic nucleus. This long-lasting event challenges previous astronomical knowledge on galaxy dynamics.
Fresh water on Earth emerged 500M years earlier than previously thought
Researchers at Curtin University discovered fresh water on Earth around four billion years ago, challenging existing theories. Analysis of ancient crystals suggests landmasses and fresh water played a crucial role in early life emergence. Published in Nature Geoscience.
The World Will Soon Witness "One of the Rarest Space Events of Our Lives"
An asteroid named 99942 Apophis will pass close to Earth in 2029, posing no threat for the next century. NASA and ESA plan missions to study the 375-meter asteroid during this rare event.
Hydrothermal vents on seafloors of 'ocean worlds' could support life
A study led by UC Santa Cruz researchers suggests lower-temperature hydrothermal vents on ocean worlds like Europa could support life. Computer simulations show sustained circulation for millions of years, aiding fluid systems' longevity. NASA and NSF funded the study.
Why Nothing Can Grow on Mars
Challenges of terraforming Mars include lack of water, extreme temperatures, radiation, toxic soil, and thin atmosphere. Strategies like space mirrors and engineered microbes are proposed. Despite research, water scarcity remains a major obstacle.
Related
Astronomers see a black hole awaken in real time
A massive black hole in galaxy SDSS1335+0728 has unexpectedly awakened, transforming it into an active galactic nucleus. This long-lasting event challenges previous astronomical knowledge on galaxy dynamics.
Fresh water on Earth emerged 500M years earlier than previously thought
Researchers at Curtin University discovered fresh water on Earth around four billion years ago, challenging existing theories. Analysis of ancient crystals suggests landmasses and fresh water played a crucial role in early life emergence. Published in Nature Geoscience.
The World Will Soon Witness "One of the Rarest Space Events of Our Lives"
An asteroid named 99942 Apophis will pass close to Earth in 2029, posing no threat for the next century. NASA and ESA plan missions to study the 375-meter asteroid during this rare event.
Hydrothermal vents on seafloors of 'ocean worlds' could support life
A study led by UC Santa Cruz researchers suggests lower-temperature hydrothermal vents on ocean worlds like Europa could support life. Computer simulations show sustained circulation for millions of years, aiding fluid systems' longevity. NASA and NSF funded the study.
Why Nothing Can Grow on Mars
Challenges of terraforming Mars include lack of water, extreme temperatures, radiation, toxic soil, and thin atmosphere. Strategies like space mirrors and engineered microbes are proposed. Despite research, water scarcity remains a major obstacle.