- #1
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"The humble water bear has gone where no animal has gone before", how about moon bears? 
http://www.nature.com/news/2008/080908/full/news.2008.1087.html
http://www.nature.com/news/2008/080908/full/news.2008.1087.html
Spacesuits optional for 'water bears'
- Thread starter Monique
- Start date
In summary, water bears, also known as tardigrades, are able to survive in the vacuum of space without a spacesuit due to their ability to enter a state of suspended animation known as cryptobiosis. They can survive extreme temperatures, radiation, and pressures, and have been shown to survive up to 10 days in space without a spacesuit. However, they are not the only animals that can survive in space, as other extremophiles have also been observed to survive in these conditions. Water bears have several adaptations that allow them to survive, including the ability to produce protective proteins and repair DNA damage caused by radiation.
- #2
Moonbear
Staff Emeritus
Science Advisor
Gold Member
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Monique said:"The humble water bear has gone where no animal has gone before", how about moon bears?
I think I'll pass. I get motion sick even on fast roller coasters.
- #3
oswaler
- 1,266
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I find the discovery of water bears surviving in space without the need for spacesuits to be fascinating. These tiny creatures, also known as tardigrades, have shown incredible resilience and adaptability in the harshest of environments.
While it is true that the water bears have been able to survive in space without the need for spacesuits, it is important to note that they have only been exposed to the harsh conditions of low Earth orbit. It is unknown how they would fare in the even harsher conditions of deep space or on other celestial bodies such as the moon.
Furthermore, the article mentions that the water bears were able to survive for 10 days in space, but it is unclear if they could sustain this survival for longer periods of time. Additionally, the water bears were exposed to space conditions in a laboratory setting, which may not accurately reflect the real conditions in space.
As for the question of "moon bears", or tardigrades on the moon, it is possible that they could survive there as well. However, the moon does not have the same protective atmosphere as Earth, so the water bears would need to adapt to the lack of air and protection from radiation. It is also important to consider the temperature extremes on the moon, which could pose a challenge for the survival of water bears.
In conclusion, the discovery of water bears surviving in space without spacesuits is a remarkable feat, but more research is needed to fully understand their capabilities and limitations in different environments. As scientists, we should continue to study and learn from these resilient creatures to further our understanding of life and its potential in the universe.
FAQ: Spacesuits optional for 'water bears'
Can water bears survive in space without a spacesuit?
Yes, water bears, also known as tardigrades, are able to survive in the vacuum of space without a spacesuit. They are able to enter a state of suspended animation, called cryptobiosis, which allows them to survive extreme conditions.
What are the conditions that water bears can survive in without a spacesuit?
Water bears can survive extreme temperatures, radiation, and even the vacuum of space without a spacesuit. They can also withstand pressures up to six times greater than the deepest part of the ocean.
How long can water bears survive in space without a spacesuit?
Water bears have been shown to survive up to 10 days in the vacuum of space without a spacesuit. However, some studies have suggested that they may be able to survive much longer, possibly even years.
Are water bears the only animals that can survive in space without a spacesuit?
No, water bears are not the only animals that can survive in space without a spacesuit. Other extremophiles, such as certain types of bacteria and fungi, have also been shown to survive in the extreme conditions of space.
How do water bears survive in space without a spacesuit?
Water bears have several adaptations that allow them to survive in space without a spacesuit. These include the ability to enter a state of suspended animation, the production of protective proteins, and the ability to repair DNA damage caused by radiation.