User:Drbogdan/ScienceFacts
HIGHLIGHTS by Years (including 2000s); Breakthroughs; History; Outline; Timelines (Human, Life, Nature); Questions.
- Astronomers estimate[1] that there are as many as "One Septillion" (1×1024 or, 1 with 24 zeros) stars in the observable universe – more stars[2] (and Earth-like planets)[3] than all the grains of beach sand on our planet Earth.
- Astronomers confirm[4] (as of June 1, 2022) => 5,059 exoplanets (in 3,733 exoplanet systems and 824 multi-exoplanetary systems) – after studying only a very small portion of the starry sky.
- The NASA probes currently active on the planet Mars (as of December 23, 2024) are the following:
Perseverance rover & Ingenuity helicopter => 1365 sols (1404 days) (3 years, 309 days) (landed February 18, 2021).
(USA flag on Mars – Mars Weather: Perseverance*Curiosity*InSight – Mars rocks – Martians found?[5]).
- A spaceship from planet Earth speeding 165,000 miles an hour (as fast as our fastest one),[6] would take nearly 20,000 years[6][7] to travel beyond our Solar System to the nearest star Proxima Centauri – with no worthy place to land.
- Spaceship planet Earth is speeding about "One Million" miles an hour[8] through outer space and, along with the rest of the Milky Way Galaxy, is traveling toward Andromeda Galaxy. (WikiTalk).
- The Universe contains life – on planet Earth – at least – and – we are not alone – life abounds – wherever we are – with microorganisms – at the very minimum.[9]
- Biologists currently understand that microorganisms were the only known life forms present during the earliest 85% of time since the planet Earth was formed 4.54 billion years ago – Plants and Animals appear much more recently – in the latest 15% of time – Modern Humans, much more recently yet – in less than the latest 0.005% of time.
- Biologists have estimated that over 99%[10] of all species of life forms that have ever lived on planet Earth are now extinct.
- Chemists have determined that all life forms on planet Earth are based on one particular chemical – with astronomical variations.[11][12]
- Physicists have estimated that there is about 1×1082 (1 with 82 zeros) atoms[13] in the observable Universe, and that additionally, at least 99.9999999%[14] of all the matter in the Universe, from the very small to the very large, is empty space.
References
- ↑ Staff (2020). "How many stars are there in the Universe?". European Space Agency. Retrieved January 17, 2020.
- ↑ Mackie, Glen (February 1, 2002). "To see the Universe in a Grain of Taranaki Sand". Swinburne University of Technology. Retrieved January 17, 2020.
- ↑ Mack, Eric (March 19, 2015). "There may be more Earth-like planets than grains of sand on all our beaches - New research contends that the Milky Way alone is flush with billions of potentially habitable planets -- and that's just one sliver of the universe". CNET. Retrieved February 11, 2021.
- ↑ Staff (2020). "The Extrasolar Planets Encyclopaedia - Catalog". The Extrasolar Planets Encyclopedia. Retrieved January 17, 2020.
- ↑ Staff (2020). "Martians on Mars found by the Curiosity rover". 360cities.net. Retrieved January 17, 2020.
- ↑ 6.0 6.1 Cofield, Calla (August 24, 2016). "How We Could Visit the Possibly Earth-Like Planet Proxima b". Space.com. Retrieved January 17, 2020.
- ↑ Bogdan, Dr. Dennis (2020). "Calculation - Time to nearest star". LiveJournal. Archived from the original on August 20, 2020. Retrieved January 17, 2020.
{{cite web}}:|archive-date=/|archive-url=timestamp mismatch; August 21, 2020 suggested (help)- ↑ Fraknoi, Andrew (2007). "How Fast Are You Moving When You Are Sitting Still?" (PDF). NASA. Retrieved January 17, 2020.
- ↑ Kolata, Gina (June 14, 2012). "In Good Health? Thank Your 100 Trillion Bacteria". The New York Times. Retrieved January 17, 2020.
- ↑ Novacek, Michael J. (November 8, 2014). "Prehistory's Brilliant Future". The New York Times. Retrieved January 17, 2020.
- ↑ Bogdan, Dr. Dennis (February 16, 2020). "The one particular chemical is Nucleic Acid - a basic chemical for all known life forms - in the form of DNA - and/or - RNA - that defines - by way of a particular genetic code sequence - all the astronomically diverse known life forms on Earth - all such known life forms are essentially a variation of this particular Nucleic Acid chemical that, at a very basic level, has been uniquely coded for a specific known life form". Dr. Dennis Bogdan.
- ↑ Berg, J.M.; Tymoczko, J.L.; Stryer, L. (2002). Chapter 5. DNA, RNA, and the Flow of Genetic Information. Retrieved February 16, 2020.
{{cite book}}:|work=ignored (help)- ↑ Baker, Harry (11 July 2021). "How many atoms are in the observable universe?". LiveScience. Retrieved 11 July 2021.
- ↑ Sundermier, Ali (September 23, 2016). "99.9999999% of Your Body Is Empty Space". ScienceAlert. Retrieved January 17, 2020.
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