2024年2月19日 · Sunlight is less likely to be an influence for worlds like Makemake, which orbits at a distance one and a half times Pluto's closest approach to the Sun. Eris, which is nearly as large as Pluto,...

2020年10月28日 · Eris: Nearly the size of Pluto, Eris is the second-largest known dwarf planet in the solar system. At its farthest point, mysterious Eris is more than 97 times as far from the Sun as the Earth is. Because of its distance, it is difficult to observe, but Webb will tell scientists quite a bit about what kinds of ices are on its surface.

2024年2月21日 · Instead, the James Webb Space Telescope (JWST) gave us a surprise! We found evidence pointing to thermal processes producing methane from within Eris and Makemake.

2024年2月27日 · Enter JWST, the largest space telescope of all time. Using Webb data taken from August 2022 for Eris and January 2023 for Makemake, Glein and his colleagues analyzed spectra from both worlds....

2024年2月24日 · Data collected by the James Webb Space Telescope shows that, like Pluto, the dwarf planets Eris and Makemake could be geologically active, which changes what we know about their chances of ...

2024年2月20日 · SwRI scientists used data from the James Webb Space Telescope to model the subsurface geothermal processes that could explain how methane ended up on the surfaces of Eris and Makemake, two dwarf planets in the distant Kuiper Belt.

2024年2月28日 · Eris and Makemake—two icy worlds beyond the orbit of Pluto—have seemingly fresh methane on their surface, a sign of unexpectedly hot interiors

2024年5月22日 · Abstract: The new generation of observatories and instruments (VLT/ERIS, JWST, ELT) motivate the development of robust methods to detect and characterise faint and close-in exoplanets. Molecular mapping and cross-correlation for spectroscopy use molecular templates to isolate a planet's spectrum from its host star.

2024年2月16日 · NASA’s James Webb Space Telescope has provided scientists with evidence of geothermal activity deep within two far-out dwarf planets, Eris and Makemake. “We see some interesting signs of hot times in cool places,” Christopher Glein, an expert in planetary geochemistry at the Southwest Research Institute, said this week in a news release .

ERIS: Due to its brightness, Eris will be observed with the NIRSpec IFU and the medium-resolution gratings across the entire near-infrared wavelength range. No PRISM observations are specified. MIRI LRS observations will be used to obtain short-wavelength mid-infrared spectra of