In science fiction stories about contact with extraterrestrial civilisations, there is a problem: What kind of propulsion system could make it possible to bridge the enormous distances between the stars? It cannot be done ...
Space Exploration
Dec 20, 2021
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The most recently discovered group of rocky bodies nearby Earth are termed co-orbital objects. These may have been an attractive location for extraterrestrial intelligence (ETI) to locate a probe to observe Earth throughout ...
Space Exploration
Sep 23, 2019
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Enrico Fermi, when asked about intelligent life on other planets, famously replied, "Where are they?" Any civilisation advanced enough to undertake interstellar travel would, he argued, in a brief period of cosmic time, populate ...
Astronomy
Jun 10, 2014
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(Phys.org)—Former President Bill Clinton recently expressed his support for interstellar travel at the 100 Year Spaceship Symposium, an international event advocating for human expansion into other star systems. Interstellar ...
General Physics
Oct 9, 2012
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The Defense Department first proposed Star Wars. Now it wants Star Trek.
Space Exploration
Jun 16, 2011
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(PhysOrg.com) -- NASA launch will evaluate how a nanosatellite spacecraft and its payload performs.
Space Exploration
Aug 18, 2010
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Humans have dreamed about traveling to other star systems and setting foot on alien worlds for generations. To put it mildly, interstellar exploration is a very daunting task. As we explored in a previous post, it would take ...
Space Exploration
Jan 9, 2024
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In 1950, while sitting down to lunch with colleagues at the Los Alamos Laboratory, famed physicist and nuclear scientist Enrico Fermi asked his famous question: "Where is everybody?" In short, Fermi was addressing the all-important ...
Astrobiology
Nov 29, 2023
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A recent study submitted to Acta Astronautica and currently available on the arXiv preprint server explores the potential for using aerographite solar sails for traveling to Mars and interstellar space, which could dramatically ...
Space Exploration
Sep 22, 2023
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Science fiction has long described sophisticated technology that can temporarily put humans into a suspended state, permitting characters to awaken far into the future, often after extended journeys through space. In reality, ...
Plants & Animals
Aug 20, 2023
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