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WATCH: Neil deGrasse Tyson to commentate SpaceX's historic mission to ISS
The Demo-2 mission represents a new era for American spaceflight.
- On Wednesday afternoon, SpaceX is set to become the first private company to launch humans into orbit.
- The company's Crew Dragon, launched by the Falcon 9 rocket, is scheduled to take two NASA astronauts to the International Space Station.
- Neil deGrasse Tyson will host the American Museum of Natural History's live-stream coverage of the launch.
On Wednesday afternoon, a SpaceX rocket is set to launch two NASA astronauts into space on a mission to the International Space Station. If successful, it'll be the first time a private company has put humans into orbit, and the first time astronauts have launched from American soil since NASA's Space Shuttle program ended in 2011.
At 4:33 p.m E.T., SpaceX's Falcon 9 rocket is set to take off from the company's Launch Complex 39A site in Cape Canaveral, Florida. About 90 minutes before launch, NASA astronauts Bob Behnken and Doug Hurley will walk across a walkway 230 feet above the ground and climb into Crew Dragon — the SpaceX capsule that sits atop the Falcon 9 rocket.
Hurley (R) and Behnken (L)
Photo by Bill Ingalls / NASA
It won't be the Crew Dragon's first mission. Last year, SpaceX successfully sent a Crew Dragon carrying only cargo to the International Space Station. But the company has also suffered setbacks with the capsule, including thruster and parachute complications, and a 2019 explosion that occurred during testing.
If successful, Falcon 9 will launch the Dragon capsule into low Earth orbit 12 minutes after takeoff. The rocket will then begin a controlled descent to its landing site on a drone ship in the Atlantic Ocean. Hurley and Behnken will manually fly Crew Dragon toward the ISS.
When they approach the station, Crew Dragon's autonomous docking system will take over, and the capsule will connect to the station at 11:29 a.m. on Thursday. The NASA astronauts will then board the ISS, where they'll likely remain for several months. (NASA has yet to confirm the details of the return mission.)
Walkway to SpaceX's Crew Dragon atop the Falcon 9 rocket
In addition to being a milestone for private spaceflight, Wednesday's mission — called Demo-2 — is also the culmination of NASA's Commercial Crew Program. Started in 2010, the federally funded program aims to pair NASA with private companies — like SpaceX and Boeing — to transport astronauts to and from the ISS. The mission also represents the end of an era in which the U.S. has relied on Russia to transport American astronauts to the ISS.
"This is a unique opportunity to bring all of America together in one moment in time and say, look at how bright the future is," Jim Bridenstine, NASA's administrator, said at a news conference on Tuesday.
Here's where you can live-stream the historic launch:
American Museum of Natural History
The American Museum of Natural History will begin streaming around 11 a.m. E.T. The live-stream event will begin with curator Ruth Angus examining "the awe-inspiring leap from imagination to scientific achievement in space exploration." At 1 p.m., the museum's Director of Astrovisualization Carter Emmart and astrophysicist Jackie Faherty will take viewers on a virtual field trip to the ISS. Around 4 p.m., Hayden Planetarium Director Neil deGrasse Tyson will join Faherty and museum curator Michael Shara to provide live commentary on the launch.
NASA's live-streaming channel will begin covering the launch Wednesday at 12 p.m. E.T. The agency will provide live commentary, and will also show the astronauts joining the crew of the ISS after the capsule docks with the station.
SpaceX's YouTube channel will also live-stream the launch, though the link is not yet available. We'll update it as it comes online.
UPDATE: The SpaceX link is now active and the live-stream is scheduled to begin at 12:15 p.m.
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Sallie Krawcheck and Bob Kulhan will be talking money, jobs, and how the pandemic will disproportionally affect women's finances.
Can an orgasm a day really keep the doctor away?
- Achieving orgasm through masturbation provides a rush of feel-good hormones (such as dopamine, serotonin and oxytocin) and can re-balance our levels of cortisol (a stress-inducing hormone). This helps our immune system function at a higher level.
- The surge in "feel-good" hormones also promotes a more relaxed and calm state of being, making it easier to achieve restful sleep, which is a critical part in maintaining a high-functioning immune system.
- Just as bad habits can slow your immune system, positive habits (such as a healthy sleep schedule and active sex life) can help boost your immune system which can prevent you from becoming sick.
How masturbation affects your brain...<p>Orgasms are a very common human phenomenon. The physical and mental health benefits have been researched frequently as a result, and yet, there is still so much to be learned about how our bodies and brains react to the chemicals and hormones released during and after experiencing this type of sexual release.</p><p>"The amount of speculation versus actual data on both the function and value of orgasm is remarkable" explains Julia Heiman, director of the <a href="https://kinseyinstitute.org/" target="_blank">Kinsey Institute for Research in Sex, Gender, and Reproduction</a>.</p><p>Masturbation causes a rush of <a href="https://www.webmd.com/mental-health/what-is-dopamine" target="_blank">dopamine</a>, which is a chemical that is associated with our ability to feel pleasure. Along with the rush of dopamine that is released during an orgasm, there is also a release of a hormone called <a href="https://www.livescience.com/42198-what-is-oxytocin.html" target="_blank">oxytocin</a>, which is commonly referred to as the "love hormone."<br></p><p>This concoction of chemicals does more than just boost our mood, it also can play a key role in decreasing stress and promoting relaxation. Oxytocin decreases <a href="https://www.webmd.com/a-to-z-guides/what-is-cortisol" target="_blank">cortisol</a>, which is a stress hormone that is usually present (in high volumes) during times of anxiety, fear, panic, or distress. </p><p>According to BDSM and fetish researcher <a href="https://www.psychologytoday.com/us/therapists/dr-gloria-brame-colbert-ga/278388" target="_blank">Dr. Gloria Brame</a>, an orgasm is the biggest non-drug induced blast of dopamine that we can experience. </p><p>By boosting the oxytocin and dopamine levels and subsequently decreasing our cortisol levels, the brain is placed in a more relaxed, euphoric, and calm state. </p>
Masturbation boosts your immune system and raises your white blood cell count.<p>How do those effects on the brain from reaching orgasm translate to boosting our immune system and making our body healthier?</p><p>The increase of oxytocin and dopamine that causes a decrease in cortisol levels can help boost our immune system because cortisol (well-known for being a stress-inducing hormone) actually helps maintain your immune system if released in small doses. </p><p>According to <a href="https://www.health24.com/Sex/Great-sex/incredible-health-benefits-to-masturbating-20181030-2" target="_blank">Dr. Jennifer Landa</a>, a hormone-therapy specialist, masturbation can produce the right kind of environment for a strengthened immune system to thrive. </p><p><a href="https://www.ncbi.nlm.nih.gov/pubmed/15316239" target="_blank">A study</a> conducted by the Department of Medical Psychology at the University Clinic of Essen (in Germany) showed similar results. A group of 11 volunteers were asked to participate in a study that would look at the effects of orgasm through masturbation on the white blood cell count and immune system.</p><p>During this experiment, the white blood cell count of each participant was analyzed through measures that were taken 5 minutes before and 45 minutes after reaching a self-induced orgasm. </p><p>The results confirmed that sexual arousal and orgasm increased the number of white blood cells, particularly the natural killer cells that help fight off infections. </p><p>The findings confirm that our immune system is positively affected by sexual arousal and self-induced orgasm and promote even more research into the positive impacts of sexual arousal and orgasm. </p>
Masturbation can ease and prevent pain, which allows you to achieve the restful sleep that helps your immune system stay strong and healthy.<p>The benefits of masturbation have long been debated, but the more research that is done on the topic the more we understand that there are many positive reactions that happen in our bodies and brains when we orgasm.</p><p>Orgasms can help prevent or mitigate pain, which boosts the immune system, preventing cold and flu symptoms. </p><p>According to neurologist and headache specialist Stefan Evers, about one in three patients experience relief from migraine attacks by experiencing sexual activity or orgasm. Evers and his team <a href="https://www.livescience.com/27642-sex-relieves-migraine-pain.html" target="_blank">conducted an experiment</a> with 800 migraine patients and 200 patients who suffered from cluster-headaches to see how their experiences with sexual activity impacted their pain levels. </p><p>The study showed that 60% of migraine sufferers experienced pain relief after participating in sexual activity that resulted in orgasm. Of the cluster-headache sufferers, about 50% said their headaches actually worsened after sexual arousal and orgasm. </p><p>Evers suggested in his findings that the people who did not experience pain relief from migraines of headaches during their sexual activity did not release as large amounts of endorphins as those who did experience pain relief. </p><p>According to <a href="https://www.sharecare.com/health/chronic-pain/chronic-pain-affect-immune-system" target="_blank">rheumatologist Dr. Harris McIlwain</a>, people who suffer from chronic pain have immune systems that are simply not functioning at full capacity - therefore, alleviating pain (through orgasm, as an example) can help boost the immune system. </p><p>Orgasms can also promote relaxation and make it easier to fall asleep. Serotonin, oxytocin, and norepinephrine are all hormones that are released during sexual arousal and orgasm, and all three are known for counteracting stress hormones and promoting relaxation, which makes it much easier for you to fall asleep.</p><p>There are <a href="https://www.ncbi.nlm.nih.gov/pubmed/1233384" target="_blank">several studies</a> showing that serotonin and norepinephrine help our body cycle through REM and deep non-REM sleeping cycles. During these sleep cycles, the immune system releases proteins called <a href="https://www.sleepfoundation.org/articles/how-sleep-affects-your-immunity" target="_blank"><span id="selection-marker-1" class="redactor-selection-marker"></span>cytokines<span id="selection-marker-2" class="redactor-selection-marker"></span></a>, which target infection and inflammation. This is a critical part of our immune response. Cytokines are both produced and released throughout our bodies while we sleep, which proves the importance of a good sleep schedule to a healthy immune system.</p>
Masturbation promotes a high-functioning immune system; a healthy immune system prevents cold and flu.<p>The immune system is a balanced network of cells and organs that work together to defend you against infections and diseases by stopped threats like bacteria and viruses from entering your system. While there are many things we need to do to keep our immune systems functioning at optimal levels, masturbation (or other means of achieving orgasm) has proven to have positive effects on the immune system as a whole.</p><p>Just as bad habits (such as an inconsistent sleep schedule or harmful chemicals in your body) can slow your immune system, positive habits (such as a healthy sleep schedule and active sex life) can help boost your immune system. </p>
The word "learning" opens up space for more people, places, and ideas.
- The terms 'education' and 'learning' are often used interchangeably, but there is a cultural connotation to the former that can be limiting. Education naturally links to schooling, which is only one form of learning.
- Gregg Behr, founder and co-chair of Remake Learning, believes that this small word shift opens up the possibilities in terms of how and where learning can happen. It also becomes a more inclusive practice, welcoming in a larger, more diverse group of thinkers.
- Post-COVID, the way we think about what learning looks like will inevitably change, so it's crucial to adjust and begin building the necessary support systems today.
The coronavirus pandemic has brought out the perception of selfishness among many.
- Selfish behavior has been analyzed by philosophers and psychologists for centuries.
- New research shows people may be wired for altruistic behavior and get more benefits from it.
- Crisis times tend to increase self-centered acts.