Heidi B. Hammel joined The Planetary Society's Board of Directors in 2005. A Senior Research Scientist with the Space Science Institute in Boulder, Colorado, Hammel herself lives in Ridgefield, Connecticut.
She received her undergraduate degree from the Massachusetts Institute of Technology in 1982 and her Ph.D. in physics and astronomy from the University of Hawaii in 1988. After a post-doctoral position at the Jet Propulsion Laboratory (Pasadena, California), Hammel returned to MIT, where she spent nearly nine years as a Principal Research Scientist in the Department of Earth, Atmospheric, and Planetary Sciences.
Hammel primarily studies outer planets and their satellites, with a focus on observational techniques. Hammel received the 2002 American Astronomical Society's Division for Planetary Sciences (AAS/DPS) Sagan Medal for outstanding communication by an active planetary scientist to the general public .
Question: What is inhibiting space exploration today?
Heidi Hammel: It’s clear that the only thing that is inhibiting us from doing further human exploration of space is money and the will to do it. I mean, if we could do it 30, 40 years ago, 50 years ago, whatever, we could certainly do it now. It costs a lot of money, and you need to have a good reason to do it. And in the past our reasons were not science, and don’t let scientists tell you otherwise. That just means they haven’t read history. We were not doing moon landings to do geological exploration of the surface. In fact, when we got to that point, the program was canceled, so human spaceflight at this point is not about science. It really needs to be about economics or politics. So there’s nothing technological preventing us from doing it. We have the technology to live in space for years right now. Getting to Mars is a little more challenging. It’s a lot further than the moon, a lot further than the moon. People don’t really appreciate that, but it’s going to be a lot harder, and people worry about the sun and whether those solar flares will hurt the astronauts. But that’s just a technological problem. You could think of ways to get around it. It just costs money and costs the will power. So there’s people willing to go right now. Some of these astronauts, they want to go to space. They want. That’s what they want to do. I don’t want to go, but that’s just my own personal thing. I’m happy here on the surface of the earth. If space travel ever got to be as simple as jet travel today, yeah, I’d take a jet flight to the moon. But right now it’s too cramped and tiny, and I just don’t want to do that. My kids, if they want to, I mean, there’s nothing preventing it except it costs money. I wish that our resources in our country were devoted to things like exploration and expanding our boundaries rather than some of the other things that we’re spending 10 billion dollars on every two weeks. But that’s not my choice to make really, except as a citizen I vote all the time. Because exploration is not science driven, you’ve got to ask what is it driven by? And it’s driven by politics. And I gave a public lecture quite a few years ago now, where I was talking about the future of planetary exploration. And I said in this very public lecture, I said, you know, “I think the only way that the U.S. human spaceflight program is going to get really revitalized, really put sort of an Apollo level push on it, is if some other country, perhaps China, were to actually have a landed flight to the moon and brought back our American flag and put it in Tiananmen Square. Now I think that might be a provocative enough maneuver that the U.S. might stand up and say, oh, well, well, we can do that, too. We can go back to the moon. To me that’s the only kind of thing that will make our government turn around and start investing in human spaceflight. With that said, I think the world is changing. I think that the private industries are now starting to get interested enough in space that we may see a very different paradigm come up for human spaceflight. It may be the Branson’s, the Virgin Galactic Spaceship One, it may be those people, sort of like the Orville and Wilbur Wright’s of spaceflight, who actually with their small spacecraft make it more of a tourist industry, and they start to get enough money. And once you get enough money going, then other people throw money at it, and as I said earlier, money is all you need. There’s no technological barrier to space exploration. It’s money. The private part of our industry may overtake the government part. And we may see space, human spaceflight, coming at us from a very different direction than our current thinking has put it. A lot of science fiction writers have talked about that in the past, where you’ve got your asteroid mining companies, and that they are the ones that are really going to make space exploration happen. It may turn out to be something like that. I don’t see any reason that it can’t happen. We just need to find the money and the will to make it happen.
Heidi Hammel says reallocating money toward science could do us a lot of good.
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Researchers detect a large lake and several ponds deep under the ice of the Martian South Pole.
- Italian scientists release findings of a large underground lake and three ponds below the South Pole of Mars.
- The lake might contain water, with salt preventing them from freezing.
- The presence of water may indicate the existence of microbial and other life forms on the planet.
Mars colony: Humanity's greatest quest | Michio Kaku, Bill Nye, & more | Big Think<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="aa931ba0f8c1152a7c32c5e09c55d138"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/KfKr5Jll88o?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
"Nothing but naked people: fat ones, thin ones, old, young…"
"The Yellow Sands", 1888, John Reinhard Weguelin; source: Wikimedia Commons<h3>Naked revolution</h3><p>Yet long before anyone knew about beach fashion, naturism was trendy. Bathing naked in the sea was going on in England as early as 1840. However, during the reign of Queen Victoria, this pleasure was outlawed. But it popped up again among the conservative Germans. In 1898, the first Naturist Club was founded in Essen and in 1900 the Wandering Birds group (<em>Wandervögel</em>) was scouring the country for uninhabited places and naked sunbathing. In the same year, Heinrich Pudor wrote <em>The C</em><em>ult of </em><em>the </em><em>Nud</em><em>e</em>, winning the hearts of contemporary supporters of naturism.</p><p>In the 1920s, on the back of this, members of the Movement for Natural Healing (<em>Naturheilbewegung</em>) organized naked sunbathing for the improvement of health. Persuaded by Pudor's theory of the healing properties of the sun and wind, which could be absorbed through the skin, they launched the naked revolution.</p><p>Pudor's book became the naturists' manifesto and soon after, not far from Hamburg, the Free Body Culture (<em>Freikörperkultur</em>, or FKK) movement was founded. This spread through other German centres and brought together thousands of people. The FKK still operates under the same name today.</p><p>The cult of the naked body even wrote itself into the ideology of fascist Germany, which advocated a pure, Aryan race. But in 1933, Hermann Göring issued an order that defined nudity as "the greatest threat to the German soul" and, with that, criminalized naturist organizations. But this wasn't the end of the movement. The naturists went underground, continuing their activities under the guise of improving physical fitness.</p><p>In 1936, the idea was even floated of having a naturist display to open the Berlin Olympic Games. It was quickly dropped. Despite this, in 1939 the naturists managed to organize their own Games in the Swiss village of Thielle.</p>
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.
Is the Magnetic Field Reversing?<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="e3e0b16dac3b05dab808a4ddf04d198b"><iframe type="lazy-iframe" data-runner-src="https://www.youtube.com/embed/51usJ74pPP8?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Crows have their own version of the human cerebral cortex.
Action-packed pallia<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDQ0NzkyMS9vcmlnaW4ucG5nIiwiZXhwaXJlc19hdCI6MTYxNzk1NzM1OH0.Tjb3zulFW2gwhteR124F9HGbmdnCqNqQFOBQouieTJ8/img.png?width=980" id="2bbc9" class="rm-shortcode" data-rm-shortcode-id="2907e4035e553565f4446e968ee73d92" data-rm-shortcode-name="rebelmouse-image" />
Fun with Ozzie and Glenn<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDQ0Njk2MS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYxMzY4Njc2MX0.ZgpsPMCK6qOj2o0kErvVPjdua1EnMCIwCuHHGrb3LiY/img.jpg?width=980" id="acbeb" class="rm-shortcode" data-rm-shortcode-id="2e286fecbb228a5ca8aa26fcd19f95a2" data-rm-shortcode-name="rebelmouse-image" alt="two crows in a tree" />
Ozzie and Glenn not pictured
Credit: narubono/Unsplash<p>The kind of higher intelligence crows exhibited in the new research is similar to the way we solve problems. We catalog relevant knowledge and then explore different combinations of what we know to arrive at an action or solution.</p><p>The researchers, led by neurobiologist <a href="https://homepages.uni-tuebingen.de/andreas.nieder/" target="_blank">Andreas Nieder</a> of the University of Tübingen in Germany, trained two carrion crows (<em>Corvus corone</em>), Ozzie and Glenn.</p><p>The crows were trained to watch for a flash — which didn't always appear — and then peck at a red or blue target to register whether or not a flash of light was seen. Ozzie and Glenn were also taught to understand a changing "rule key" that specified whether red or blue signified the presence of a flash with the other color signifying that no flash occurred.</p><p>In each round of a test, after a flash did or didn't appear, the crows were presented a rule key describing the current meaning of the red and blue targets, after which they pecked their response.</p><p>This sequence prevented the crows from simply rehearsing their response on auto-pilot, so to speak. In each test, they had to take the entire process from the top, seeing a flash or no flash, and then figuring out which target to peck.</p><p>As all this occurred, the researchers monitored their neuronal activity. When Ozzie or Glenn saw a flash, sensory neurons fired and then stopped as the bird worked out which target to peck. When there was no flash, no firing of the sensory neurons was observed before the crow paused to figure out the correct target.</p><p>Nieder's interpretation of this sequence is that Ozzie or Glenn had to see or not see a flash, deliberately note that there had or hadn't been a flash — exhibiting self-awareness of what had just been experienced — and then, in a few moments, connect that recollection to their knowledge of the current rule key before pecking the correct target.</p><p>During those few moments after the sensory neuron activity had died down, Nieder reported activity among a large population of neurons as the crows put the pieces together preparing to report what they'd seen. Among the busy areas in the crows' brains during this phase of the sequence was, not surprisingly, the pallium.</p><p>Overall, the study may eliminate the layered cerebral cortex as a requirement for higher intelligence. As we learn more about the intelligence of crows, we can at least say with some certainty that it would be wise to avoid <a href="https://www.nytimes.com/2008/08/26/science/26crow.html" target="_blank" rel="noopener noreferrer">angering one</a>.</p>