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- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
The American space agency NASA operates the orbiting observatory.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Researchers combined the information from the James Webb with existing data to make new estimates for the exoplanet’s mass and size.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
These suggest that LHS 1140 b is “a promising super-Earth ice or water world,” the University of Montreal said in a
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
statement. Some past studies had suggested the exoplanet might be a gas giant, also known as a mini-Neptune.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
But the researchers said the new study provides evidence that LHS 1140 b is more likely a super-Earth, a rocky planet bigger than
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
The new research supports a NASA-led study from October 2023 that suggested at least 17 observed exoplanets could hold oceans
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
of liquid water. That study noted that sometimes water from these oceans likely breaks through large pieces of ice to form geysers
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Scientists had already identified LHS 1140 b as being within its star’s habitable zone.”
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Exoplanets found within this zone are believed to have temperatures that would permit water to exist in liquid form.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Measurements made by the James Webb data suggest the exoplanet “is less dense” than expected for a rocky, Earth-like body.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
The possibility of a large liquid ocean would be found on the side of the planet always facing the star that it orbits.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
The new data collected by the James Webb showed the exoplanet might also have a nitrogen-rich atmosphere.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
This differs from earlier research that suggested a possible atmosphere that was mostly hydrogen.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Charles Cadieux is a doctoral student at the University of Montreal’s Trottier Institute for Research on Exoplanets. He was the lead writer of the study.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Cadieux said in a statement, “Of all currently known temperate exoplanets, LHS 1140 b could well be our best bet to one day indirectly
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
confirm liquid water on the surface of an alien world beyond our solar system.”
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
He noted that if the study’s findings can be confirmed, the data would represent “a major milestone in the search for exoplanets that could possibly support
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
life. René Doyon is a project scientist at the University of Montreal.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
He helped lead the research. He said more observations will be needed to confirm the current study’s findings.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
“The current hint of a nitrogen-rich atmosphere begs for confirmation with more data,” Doyon said.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
He estimated that at least one more year of observations will be needed “to confirm that LHS 1140 b has an atmosphere.”
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
The process of confirming whether carbon dioxide is present in the atmosphere and liquid water exists on the surface would likely require several years of observations,
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
Doyon noted. Ryan MacDonald is a NASA Sagan Fellow in the University of Michigan’s Department of Astronomy who helped examine the James Webb data.
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
He said “This is the first time we have ever seen a hint of an atmosphere on a habitable zone rocky or ice-rich exoplanet.”
- Public domaingeneral-american
Study: New Evidence Suggests Earth-like Exoplanet May Hold Liquid Ocean
With further data collection and investigation, MacDonald noted there is a good possibility “we might just have found evidence of air on this world.”
Source badges: Public domain · Creator video · Digital presenter · Reference recording. Literary passages are public domain. Studio notes are not spoken in the audio.