Results tagged “astrobiology”

Although Earth is uniquely situated in the solar system to support creatures that call it home, different forms of life could have once existed, or might still exist, on other planets. But finding traces of past or current lifeforms on other worlds is challenging.

Imagine microscopic life-forms, such as bacteria, transported through space, and landing on another planet. The bacteria finding suitable conditions for its survival could then start multiplying again, sparking life at the other side of the universe.

The growth time scales of planetary embryos and their formation process are imperative for our understanding on how planetary systems form and develop.

Keith's note: I have known John Rummel for 35 years. I first worked with him at the old Life Science Division at NASA Headquarters. He has made an indelible mark on NASA's search for life in the universe. Please consider making a donation to help out John and his family in this time of need.

Researchers have found that rocky exoplanets which formed early in the life of the galaxy seem to have had a greater chance of developing a magnetic field and plate tectonics than planets which formed later.

Humans have been wondering whether we alone in the universe since antiquity.

Giant elliptical galaxies are not as likely as previously thought to be cradles of technological civilizations such as our own, according to a recent paper by a University of Arkansas astrophysicist.

Astrobiology has been gaining increasing scientific prominence and public attention as the search for life beyond Earth continues to make significant headway on multiple fronts. In view of these recent developments, the fascinating and dynamic etymology of astrobiology is elucidated, and thus shown to encompass a plethora of vivid characters drawn from different continents, religions, ideologies and centuries.

Aims. Formamide (HCONH2) is the simplest molecule containing the peptide bond first detected in the gas phase in Orion-KL and SgrB2. In recent years, it has been observed in high temperature regions such as hot corinos, where thermal desorption is responsible for the sublimation of frozen mantles into the gas phase.

The NASA Science Mission Directorate is soliciting community feedback and recommendations on the structure and science goals of the NASA Astrobiology Program's Research Coordination Network (RCN) focused on "Early Cells to Multicellularity" (ECM) research. Responses to this Request for Information (RFI) will be used by NASA to further inform planning and development of the ECM RCN and to ensure that this RCN is scoped to advance the big science questions in this research area.

To help answer one of the great existential questions--how did life begin?--a new study combines biological and cosmological models. Professor Tomonori Totani from the Department of Astronomy looked at how life's building blocks could spontaneously form in the universe--a process known as abiogenesis.

NASA's Science Mission Directorate (SMD) has an extensive Program Officers list of contact information for all of its research programs. Virtually everything SMD does has a contact listed - except Astrobiology. The word is not mentioned at all - even though many of its sub topics are mentioned. NASA issues research solicitations for "Astrobiology" yet they can't be bothered to tell people who to contact for the programs managed under "Astrobiology" at NASA?

Can multicellular life be distinguished from single cellular life on an exoplanet? We hypothesize that abundant upright photosynthetic multicellular life (trees) will cast shadows at high sun angles that will distinguish them from single cellular life and test this using Earth as an exoplanet.

The National Academies of Science, Engineering, and Medicine along with the NASA Science Mission Directorate have reached consensus on the Statement of Task for the next decadal survey in planetary science and astrobiology. The Statement of Task will serve as a guiding document for the Planetary Science and Astrobiology Decadal Survey 2023-2032.

When the Earth was born, it was a mess. Meteors and lightning storms likely bombarded the planet's surface where nothing except lifeless chemicals could survive.

The Network for Life Detection (NfoLD) is a NASA Research Coordination Network focused on advancing life detection research by building a strong, diverse, and interactive community of scientists and technologists.

AbGradCon 2019 Talks Are Now Online

The 15th Astrobiology Graduate Conference (AbGradCon) was held from July 22-26, 2019 at the University of Utah in Salt Lake City, Utah, with 75 participants presenting 31 talks and 44 posters.

Astrobiology Is At A Pivot Point

A Twitter sequence about the present and future of Astrobiology.

Sometimes Twitter is a better way to encapsulate a thought than a simple narrative.

The first minerals to form in the universe were nanocrystalline diamonds, which condensed from gases ejected when the first generation of stars exploded.

The Planetary Science Division intends to solicit Interdisciplinary Consortia for Astrobiology Research (ICAR) to support the goal of the NASA's Astrobiology program in the study of the origins, evolution, and distribution of life in the universe.

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