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"Mundo hycean"

O que se sabe sobre o planeta K2-18 b, possível candidato a abrigar vida fora da Terra

Zero Hora
A handout artist's impression released on April 17, 2025 by N. Madhusudhan/University of Cambridge, shows the K2-18b super-Earth, a hycean world, such as exoplanet K2-18b which astronomers say they have found the strongest yet “hints” of the life outside this solar system. Astronomers announced on April 17, 2025 they have detected the most promising "hints" yet of potential life on a planet beyond our solar system, though other scientists expressed scepticism. There has been vigorous debate in scientific circles about whether the planet K2-18b, which is 124 light years away in the Leo constellation, could be an ocean world capable of hosting microbial life. (Photo by Handout / University of Cambridge / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / University of Cambridge / N. Madhusudhan" - HANDOUT - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS<!-- NICAID(16018778) -->
A handout artist's impression released on April 17, 2025 by N. Madhusudhan/University of Cambridge, shows the K2-18b super-Earth, a hycean world, such as exoplanet K2-18b which astronomers say they have found the strongest yet “hints” of the life outside this solar system. Astronomers announced on April 17, 2025 they have detected the most promising "hints" yet of potential life on a planet beyond our solar system, though other scientists expressed scepticism. There has been vigorous debate in scientific circles about whether the planet K2-18b, which is 124 light years away in the Leo constellation, could be an ocean world capable of hosting microbial life. (Photo by Handout / University of Cambridge / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / University of Cambridge / N. Madhusudhan" - HANDOUT - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS<!-- NICAID(16018778) -->
Estamos acompanhados?

Cientistas dizem ter encontrado o indício mais forte até agora de possível vida fora do Sistema Solar

Zero Hora
Conceito de alinhamento planetário - Foto: revers_jr/stock.adobe.comFonte: 755551673<!-- NICAID(15960148) -->
Espetáculo único

Alinhamento dos planetas: veja como observar o fenômeno nesta sexta-feira

Zero Hora
Conceito de alinhamento planetário - Foto: revers_jr/stock.adobe.comFonte: 755551673<!-- NICAID(15960148) -->
Espetáculo único

Alinhamento de planetas: veja quando ocorre o fenômeno e como acompanhar

Zero Hora
Imagem do Hubble com zoom feito do James Webb sobreposta. <!-- NICAID(15696632) -->
Nebulosa de Órion

Telescópio da Nasa James Webb flagra estrelas interrompendo formação de planetas

GZH
Patryk Sofia Lykawka, gaúcho, propõe a existência de um novo planeta no sistema solar<!-- NICAID(15646168) -->
Novo integrante?

Estudo de astrofísico gaúcho indica possível existência de planeta similar à Terra “escondido” no Sistema Solar

Vinicius Coimbra
NASA finds key building block for life in a moon of SaturnIn this NASA handout image obtained on June 14, 2023, a combination of high-resolution images taken during a 2005 flyby of NASA's Cassini spacecraft were combined into this mosaic to show Saturn's moon Enceladus, with long fissures at the moon's south pole that allow water from the subsurface ocean to escape into space. The long hunt for extraterrestrials just got a major boost.Scientists have discovered that phosphorus, a key building block of life, lies in the ocean beneath the icy surface of Saturn's moon Enceladus. The finding was based on a review of data collected by NASA's Cassini probe, and was published on June 14, 2023 in the prestigious journal Nature. (Photo by HANDOUT / NASA / AFP) / XGTY / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / NASA /HANDOUT" - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS / TO GO WITH AFP STORY BY ISSAM AHMED: NASA finds key building block for life in a moon of SaturnEditoria: SCILocal: In spaceIndexador: HANDOUTSecao: space programmeFonte: NASAFotógrafo: Handout<!-- NICAID(15456347) -->
 Descoberta

Nasa encontra elemento essencial à vida em lua de Saturno

AFP
Da esquerda para a direita imagens de Júpiter e Saturno, dois dos planetas que constituem o Sistema Solar<!-- NICAID(15430419) -->
Descoberta astronômica

Com 62 novas luas identificadas, Saturno supera Júpiter e se torna planeta com maior número de satélites naturais

GZH
O LSST está instalado no Observatório Vera Rubin, em Cerro Pachón, no Chile, a 2,6 mil metros de altitude. Ele será utilizado por 10 anos e tem como dois dos principais objetivos o mapeamento da Via Láctea e criação de um ¿inventário¿ do Sistema Solar.<!-- NICAID(15325507) -->
LSST

Pesquisadores gaúchos vão utilizar a maior câmera digital do mundo para fazer “inventário” do Sistema Solar

Vinicius Coimbra
CAPE CANAVERAL, FLORIDA - NOVEMBER 16: NASA’s Artemis I Space Launch System (SLS) rocket, with the Orion capsule attached, launches at NASA's Kennedy Space Center on November 16, 2022 in Cape Canaveral, Florida. The Artemis I mission will send the uncrewed spacecraft around the moon to test the vehicle's propulsion, navigation and power systems as a precursor to later crewed mission to the lunar surface. Kevin Dietsch/Getty Images/AFP (Photo by Kevin Dietsch / GETTY IMAGES NORTH AMERICA / Getty Images via AFP)<!-- NICAID(15266642) -->
Rumo à Lua

Lançamento da missão Artemis inaugura nova era da exploração espacial, avaliam especialistas

Vinicius Coimbra
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