The best answer to any question.

Nov. 2 2015 10:44 AM

Do Astronauts Need Passports When They Travel to Space?

Answer by Clayton C. Anderson, two-time ISS astronaut; six spacewalks, 30-year NASA employee (retired 2013), author:

Astronauts do not need passports or visas when they leave Earth and travel into outer space—at least they don't at this time in our history.

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Nov. 1 2015 7:40 AM

Why Are the Eggs in Egg McMuffins So Delicious?

Answer by Garric Saito, likes food:

Here's my theory on why they taste good: Your last meal was 12-plus hours ago, and your body is seriously ready for some food. That's a big part of the equation. The Egg McMuffin being fast, cheap, and hot (the best of all worlds) is the remainder. You may not be able to make an exact replica of the Egg McMuffin, but I think you can come pretty darn close.

Oct. 31 2015 7:16 AM

How Can People Appear More Charismatic?

Answer by Andy Huang, adventure guide:

Charisma is mostly about confidence. So really this is a question about how to be more confident. There are several easy ways to increase your confidence or appear to be more confident. 

Oct. 30 2015 7:16 AM

How Did Starbucks Initially Market the Pumpkin Spice Latte?

Answer by Paul Williams, branding/marketing at Starbucks for nine years, beginning in the 1990s:

The pumpkin spice latte was originally featured on in-store signage (the banner, posters, counter cards) and was sampled in-store at the point of sale (as well as walked around the café on a tray by a barista).

Oct. 29 2015 7:04 AM

How Is Tesla Different From Regular Cars for Long-Distance Driving?

Answer by George Everitt, founder of AnActionPlan.com:

I've owned my Model S P85 since October 2013. It is the best car I've ever been in, let alone driven. Even though it “only” goes zero to 60 in 4.2 seconds, that's plenty fast for me. Truth be told, I would have been just as happy with a regular 85 and its 5.4-second zero-to-60.

Oct. 28 2015 11:32 AM

What Can Silicon Valley Learn From the Troubles of Health Care Startup Theranos?

Answer by Ramzi Amri, M.D.; Ph.D.; postdoctoral fellow, surgical oncology:

The Theranos story could become the poster child of the obsession of technophiles who don't know what they are talking about with “disrupting” health care, and the greed and hunger for buzz that fuels this. Stop trying to disrupt my health care, folks; this is not a sandbox.

Oct. 26 2015 7:08 AM

Can We Terraform a Portion of Mars by Enclosing It in a Dome?

Answer by Robert Walker, software developer, writer of articles on Mars and space issues:

This is sometimes called paraterraforming. Yes, you could cover part of Mars with a dome and then gradually spread that out to cover more and more of it. It might well be more practical than terraforming. For instance, there is a lot of water on Mars—but probably not nearly enough for making an Earth-like planet even if you were to increase the amount of sunlight by using massive mirrors in orbit around Mars or greenhouse gases. Because its polar ice caps are already really tiny compared to Earth.

Oct. 25 2015 7:32 AM

Which European Country Is the Unluckiest?

Answer by Dan Holliday, traveled widely across Northern Africa, Europe, North America, and South America:

It's hard to pick the worst. 

Ukraine was repeatedly hit by the Soviet Union, with its surfeit removed and redistributed. At its height, it punched so far above its weight that Stalin became furious with the inhabitants and decided to essentially go on a giant massacre there. Even after that, Ukraine, with basically 18 percent of the USSR's population, accounted for 40 percent of its agricultural output and a third of its heavy industry. In recompense, the powers that be in the Kremlin built a shoddy nuclear power plant that exploded and killed a bunch of people. When the USSR fell apart, Ukraine received a pittance (when it deserved more) in terms of the military hardware of the erstwhile Soviet Union. To this day, Russia still isn't happy that the Ukrainians might want to forge a path all their own—Russia still thinks of Ukraine as a vassal state, within its sphere of influence. 

Oct. 24 2015 7:05 AM

What’s the Best Way to Become Smarter?

Answer by Nicolas Cole, writer, fitness model, entrepreneur, self-development coach:

If there's one thing I've learned about intelligence, it's that very few people are born extremely smart. The extremely smart people are better named as “people who work really, really hard.” So, how do you become extremely smart?

Oct. 23 2015 7:29 AM

What’s It Like to Work for the President?

Answer by Matt McDonald, White House aide to President Bush:

It probably helps to start this by answering: How does the White House work? I'm not sure people have a good understanding of that to begin with, and it drives the question above. This, of course, is a very simplified view of a complex organization.