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The Spitzer Space Telescope was NASA’s orbiting infrared observatory, and part of NASA’s Great Observatories program, along with the Chandra X-ray Observatory and the Hubble Space Telescope. Scientists and engineers at the Center for Astrophysics | Harvard & Smithsonian led the design, testing, and construction of the Infrared Array Camera (IRAC).
Mar 9, 2021 · Life on planets around other stars also might be hidden in a subsurface ocean encased in ice, invisible even to our most powerful space telescopes. Moons of Jupiter and Saturn are known to harbor such oceans , some revealing through remote sensing at least a few of the characteristics we expect for habitable worlds.
Jun 20, 2023 · Our space telescopes might detect a mixture of gases in its atmosphere that resembles our own. Computer models would offer predictions about the planet’s life-bearing potential. Experts would debate whether the evidence made a strong case for the presence of life, or try to find still more evidence to support such a groundbreaking interpretation.
Sep 8, 2022 · I have already explained that life is rare in space—only a small fraction of matter exists in living form. Life is also rare in time, in the long unfolding history of the universe.
Life’s Origins and Conditions. On Earth, we find life everywhere we look, from the crushing depths of ocean trenches to boiling volcanic pools. But when we look to the Moon, the planets, or the stars, we don’t see the teeming ecosystems that we do here. Life, as we know it today, exists in only one place: Earth. Why?
Nov 6, 2024 · Life Versus the Fine-tuned Universe: What it Means for Life and Existence Is the Universe fine-tuned for life and complex matter? This has been an ongoing consideration for many decades because the physical constants of nature, like the strength of gravity, have values that determine everything from the stability of atoms to the formation and lifespan of stars (and whether they can support ...
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Aug 15, 2003 · There have been three main philosophical approaches to the problem of defining life that remain relevant today: Aristotle's view of life as animation, a fundamental, irreducible property of nature; Descartes's view of life as mechanism; and Kant's view of life as organization, to which we need to add Darwin's concept of variation and evolution through natural selection (Gayon 2010; Morange 2008).
