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The sample return capsule from NASA’s OSIRIS-REx mission shortly after touching down in the desert in Utah. A sample-return mission is a spacecraft mission to collect and return samples from an extraterrestrial location to Earth for analysis. Sample-return missions may bring back merely atoms and molecules or a deposit of complex compounds ...
In 2016, the Chinese Government released a white paper detailing its space program. According to the document, one of the research objectives of the program is the search for extraterrestrial life. [167] It is also one of the objectives of the Chinese Five-hundred-meter Aperture Spherical Telescope (FAST) program. [168]
After completion of biohazard testing, decisions could be made to sterilize the sample or transport all or portions to a permanent quarantine storage facility anywhere in the world. [23] The systems of such facilities must be able to contain unknown biohazards, as the sizes of any putative alien microorganisms or infectious agents are unknown.
The interdimensional hypothesis is a proposal that unidentified flying object (UFO) sightings are the result of experiencing other "dimensions" that coexist separately alongside our own [1] in contrast with either the extraterrestrial hypothesis that suggests UFO sightings are caused by visitations from outside the Earth or the psychosocial hypothesis that argues UFO sightings are best ...
The search for extraterrestrial intelligence (SETI) is a global scientific effort to detect extraterrestrial signals, or evidence of intelligent life beyond earth.. Researchers use methods such as monitoring electromagnetic radiation, searching for optical signals, and investigating potential extraterrestrial artifacts for any signs of transmission from civilizations present on othe
In its June 2022 announcement of plans to form the UAPIST, NASA named astrophysicist David Spergel as the chair of the team, and Daniel Evans, the assistant deputy associate administrator for research at NASA's Science Mission Directorate, as the official responsible for orchestrating the study. The team's objective, according to Spergel, was ...
The dark forest hypothesis is distinct from the Berserker hypothesis in that under the former, many alien civilizations could still exist provided they keep silent. The former can be viewed as a special case of the latter, if the deadly probes are only sent to star systems that show signs of intelligent life (e.g. due to resource scarcity).
A Viking lander being prepared for dry heat sterilization – this remains the "gold standard" [1] of present-day planetary protection.. Planetary protection is a guiding principle in the design of an interplanetary mission, aiming to prevent biological contamination of both the target celestial body and the Earth in the case of sample-return missions.