Video: What an Asteroid Retrieval Might Look Like in 20 Years
This video animation gives us a tantalizing glimpse into one proposed method for asteroid retrieval, which would serve as a stepping stone for future missions to asteroids.
If Barack Obama gets his way, NASA will send astronauts to a near-Earth asteroid by 2025, with the hope of capturing it.
So how exactly would that work?
Earlier this year the space agency solicited proposals and received over 400 responses. Many of these proposals were scheduled to be discussed this week at the Lunar and Planetary Institute in Houston, but due to the government shutdown, that workshop was abruptly canceled.
Nonetheless, the video animation below gives us a tantalizing glimpse into one proposed method for asteroid retrieval, which would serve as a stepping stone for future missions to asteroids. A small near-Earth asteroid would be robotically captured and bring it into a stable lunar orbit. The asteroid would then be explored by human astronauts.
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A NASA astronomer explains how astronauts dispose of their, uh, dark matter.
- When nature calls in micro-gravity, astronauts must answer. Space agencies have developed suction-based toilets – with a camera built in to ensure all the waste is contained before "flushing".
- Yes, there have been floaters in space. The early days of space exploration were a learning curve!
- Amazingly, you don't need gravity to digest food. Peristalsis, the process by which your throat and intestines squeeze themselves, actually moves food and water through your digestive system without gravity at all.
The Harvard psychologist loves reading authors' rules for writing. Here are his own.
- Steven Pinker is many things: linguist, psychologist, optimist, Harvard professor, and author.
- When it comes to writing, he's a student and a teacher.
- Here's are his 13 rules for writing better, more simply, and more clearly.
A growing body of research shows promising signs that the keto diet might be able to improve mental health.
- The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
- Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
- Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
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