Would scientists tell us about a looming apocalypse?
If a doomsday asteroid is set to collide with Earth, you're going to know about it – whether you want to or not.
Dr. Michelle Thaller is an astronomer who studies binary stars and the life cycles of stars. She is Assistant Director of Science Communication at NASA. She went to college at Harvard University, completed a post-doctoral research fellowship at the California Institute of Technology (Caltech) in Pasadena, Calif. then started working for the Jet Propulsion Laboratory's (JPL) Spitzer Space Telescope. After a hugely successful mission, she moved on to NASA's Goddard Space Flight Center (GSFC), in the Washington D.C. area. In her off-hours often puts on about 30lbs of Elizabethan garb and performs intricate Renaissance dances. For more information, visit NASA.
MICHELLE THALLER: Anthony, I often get asked this question: If scientists actually knew that there was an impending catastrophic collision, some asteroid was heading towards Earth, would they tell you? And the answer is yes. We actually study the sky; every night we're looking for objects that might be on a collision course with Earth and if we find anything that even looks risky we inform lots of people. The other thing is that the sky is available to anybody on the Earth – no one government owns the sky, there are telescopes everywhere on the planet; there's no way that anybody could hide the fact that some big asteroid was on a course with the Earth. So one of the things that I find very difficult as a scientist is people often ask the question: "Would scientists tell us if something really bad was about to happen?" And you think about that sentence and you have to ask the question: Who is the "us" here? Am I not part of "us"?
I remember back, I think it was in 2012, there was this idea that the Mayan apocalypse was going to come, that the world was going to end, it was all over the news and I actually got a phone call from somebody. I was sitting at my desk at NASA and somebody asked me the question, "Is the world going to end next week?" And I thought about that because, of course, we knew that the world was not going to end, there was nothing happening astronomically that we could tell, but I realized this person didn't think of me as an actual human being – that if I knew the world was going to end in a week I would be at work at my desk. I don't think so. The day you have all the scientists buy up all the great wine and max out their credit cards and disappear then you might want to worry, but even that's not how we work, we are people, and if we knew something dangerous was coming there would be no way for us to hide it.
Now, one of the things that NASA is researching right now is how to actually alleviate a bad collision. If we see a big asteroid coming toward us on a collision course there are actually many things we could do to avert the asteroid a little bit, have it miss the Earth, and we're studying those right now. But in the past, whenever we've even seen something that looked slightly risky, we've gone to the government about it, we've gone to the people, we've gone to the press. We have nothing to hide. And this is something that is really difficult in my life. People are saying: Are you hiding aliens? Are you hiding evidence of this? Are you hiding the fact that an asteroid is going to blow us up or whatever? And to me it speaks to the separation that somehow scientists are this monolithic, inhuman group that we could hide things, that we would want to. Instead we've been trying to involve the public in everything that we do. I know this will not convince the conspiracy theorists out there, but one of the things I love most about our science is how accessible it is and how much we would tell you even if something bad was going to happen.
- NASA astronomer Michelle Thaller fields one question with a heavy heart: If scientists knew there was a catastrophic asteroid heading towards Earth, would they tell us?
- What about aliens? Is NASA hiding aliens from the public? Are they "in" on conspiracy theories? Scientists are, on the contrary, eager to communicate their findings to the media and the public, says Thaller.
- "To me it speaks to the separation that somehow scientists are this monolithic inhuman group; that we could hide things, that we would want to," says Thaller. No single telescope owns the sky. If there's a doomsday asteroid coming, scientists all over the world are going to let the world know about it.
Universities claim to prepare students for the world. How many actually do it?
- Many university mission statements do not live up to their promise, writes Ben Nelson, founder of Minerva, a university designed to develop intellect over content memorization.
- The core competencies that students need for success—critical thinking, communication, problem solving, and cross-cultural understanding, for example—should be intentionally taught, not left to chance.
- These competencies can be summed up with one word: wisdom. True wisdom is the ability to apply one's knowledge appropriately when faced with novel situations.
A new study may help us better understand how children build social cognition through caregiver interaction.
Researchers at UT Southwestern noted a 47 percent increase in blood flow to regions associated with memory.
- Researchers at UT Southwestern observed a stark improvement in memory after cardiovascular exercise.
- The year-long study included 30 seniors who all had some form of memory impairment.
- The group of seniors that only stretched for a year did not fair as well in memory tests.
A strange weakness in the Earth's protective magnetic field is growing and possibly splitting, shows data.
- "The South Atlantic Anomaly" in the Earth's magnetic field is growing and possibly splitting, shows data.
- The information was gathered by the ESA's Swarm Constellation mission satellites.
- The changes may indicate the coming reversal of the North and South Poles.
According to a man that knows more than 20 languages, the key is to start in the middle.
- Canadian polyglot Steve Kaufmann says there is indeed a fast track to learning a new language. It involves doubling down on your listening and reading.
- By taking the focus off grammar rules that are difficult to understand and even more difficult to remember, you can instead develop habits by greater exposure to the language. Kaufmann likens the learning process to a hockey stick.
- In the beginning you make major progress as you climb the steep hill of the hockey stick, whereas the long shaft of the stick is the difficult part. Because you're not seeing day-to-day changes, you might lose motivation. So, stay the course by consuming content that interests you.