Ask Us Anything
PopSci editors answer your most-outlandish, mind-burning questions, from the ordinary to the off-the-wall.
Latest in Ask Us Anything
![What would happen if the moon suddenly disappeared?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ZY74U7EKUBBBSNWQ7AJ2LDMCEM.jpg?w=675)
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What would happen if the moon suddenly disappeared?
![Why hasn’t the sun burned out yet?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/LMF3STUXVPRITAEHMJBZ4FC4OU.jpeg?w=450)
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Why hasn’t the sun burned out yet?
![Can my dog get me sick?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/CEVQ5J66WMQAZ6I3VXUUHQSPCA.jpg?w=677)
Animals
Can my dog get me sick?
![Does a fever always mean you have an infection?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/3GRXGEF5CSB2CNUKCV3IJPSJA4.jpg?w=676)
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Does a fever always mean you have an infection?
![What can genetic testing really tell you?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/P4JJNOURFIB5GFHGSIUVJF76WI.jpg?w=800)
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What can genetic testing really tell you?
![Does drinking hot liquids on a hot day actually cool you off?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/NSP53IXZTP4AUHNEJP5SK7OJ6M.jpg?w=761)
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Does drinking hot liquids on a hot day actually cool you off?
![Is it possible to sneeze while you are sleeping?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/GBT2UKRCKFMNZFJSOM6OY36ISI.jpg?w=675)
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Is it possible to sneeze while you are sleeping?
![How worried should I really be about carcinogens?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/G3GDPXTCFEG5NSEESAZPY5G4CE.jpg?w=803)
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How worried should I really be about carcinogens?
![Do probiotics actually do anything?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/4IG2TWURCZGQGTZFE2G7MI54JE.jpg?w=400)
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Do probiotics actually do anything?
![deodorant](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/15/JAWIXJNZJWUHEAMSG2TQEZB6CY.jpg?w=675)
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What actually causes body odor?
![Is breakfast really the most important meal of the day?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/P3KWQVM5VCUZNO3PPRK4WIH6XE.jpg?w=675)
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Is breakfast really the most important meal of the day?
![What’s the best way to crack an egg? Physics has the answer.](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/HFNTLOV5IEVKGWSSFXVYADRZFQ.jpg?w=678)
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What’s the best way to crack an egg? Physics has the answer.
![What’s the healthiest way to eat a vegetable?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/VTZEPWLOZMFZ6MWZNPWPF673ZQ.jpg?w=738)
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What’s the healthiest way to eat a vegetable?
![Does brushing your teeth affect your appetite?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/M4CTYZTP6PZPBQLS7VTH67YQCI.jpg?w=677)
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Does brushing your teeth affect your appetite?
![Can I use moss to navigate?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/RXIQNIJO6R3BAYAEX7YGYTB4CM.jpg?w=716)
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Can I use moss to navigate?
![Could you fertilize Martian crops with human poop?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/BJPVO6S3NNTDKNLQ7VMUCHRKRY.jpg?w=530)
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Could you fertilize Martian crops with human poop?
![Sick Penguin](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/LLYMPQFV6CKWIFBN6XLZ5Y3CHA.jpg?w=656)
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Can Being Cold Really Make You Sick?
![Who Blows A Lighthouse’s Foghorn?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/SM2KY5AW25XPQJRJXYGBDGKCMA.jpg?w=316)
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Who Blows A Lighthouse’s Foghorn?
![Why Is It So Hard To Get Rid Of Garlic Breath?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/3KYAUWLNDARA74LHVM6G2HZ56Y-scaled.jpg?w=600)
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Why Is It So Hard To Get Rid Of Garlic Breath?
![Why hasn’t the U.S. adopted the metric system?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/DKJLCUAVU6BQJOFROJ3AGWZ5OI.jpg?w=646)
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Why hasn’t the U.S. adopted the metric system?
![Why Does Sunlight Lighten Hair But Darken Skin?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/WOSBLYGGCSFWZODCHVYK26L3HE.jpg?w=346)
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Why Does Sunlight Lighten Hair But Darken Skin?
![blood donation bag and volunteer](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/2N2ODYRS4CSQC5IINA2LPSR5MQ.jpg?w=600)
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Does Giving Blood Harm Your Immune System?
![shower curtain billowing while researcher observes its behavior](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ZDAWNDTHSEY5NLJJXLWJJKYYI4.jpg?w=600)
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Why Do Shower Curtains Billow Inward?
![Do Beards Keep Men Warm?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/RDJC76ERDCY7COO5QLZFW66EFY.jpg?w=600)
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Do Beards Keep Men Warm?
![Which is More Powerful: A Giant Microscope or a Giant Telescope?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ELKKELEOCRKN54CUMUQALVFSQQ.jpg?w=600)
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Which is More Powerful: A Giant Microscope or a Giant Telescope?
![Why Do I Feel Like Someone’s Watching Me?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/V5IKIHR7VTWW2QFD76U6ZV3Y6A.jpg?w=599)
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Why Do I Feel Like Someone’s Watching Me?
![Should I Be Freaked Out By Backwash?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/URVSSD2ENPISXMIDLTBBZREK7Y.jpg?w=600)
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Should I Be Freaked Out By Backwash?
![Do People Who Grow Up In The Arctic See Better In The Dark?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/VS44SWY7LZB2B6ZSRR3URDRCAY.jpg?w=599)
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Do People Who Grow Up In The Arctic See Better In The Dark?
![Why Does Bright Light Make Me Sneeze?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/E46OZWPYLRPPURJE4Q3EAXYATM.jpg?w=600)
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Why Does Bright Light Make Me Sneeze?
![Why Does Stale Bread Turn Hard, But Stale Chips Turn Soft?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/3TY4FGVBDKHC7GNH5JNM7QPZ6Q.jpg?w=600)
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Why Does Stale Bread Turn Hard, But Stale Chips Turn Soft?
![Why Does A Drop Of Water Confuse My Touchscreen?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/UHDB7GBEFKVVDBYTA654IZLEVI.jpg?w=600)
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Why Does A Drop Of Water Confuse My Touchscreen?
![Does It Feel Better To Give Or Receive A Gift?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/YWSINMI7IH7YDHPZXM5MCFCANA.jpg?w=600)
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Does It Feel Better To Give Or Receive A Gift?
![Why Do Stars Really Twinkle?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/MMKZ3R7AMJH7QJI27LNYL5DD5U.jpg?w=600)
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Why Do Stars Really Twinkle?
![Does ‘Bracing For Impact’ Really Protect You In A Crash?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/L4E4YVONNAI7OOPMZCI7GYWUXM.jpg?w=600)
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Does ‘Bracing For Impact’ Really Protect You In A Crash?
![Do men have hormonal cycles?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/08/K6XU5QCJ2KBZGPCADOWCWSPYMQ.jpg?w=600)
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Do men have hormonal cycles?
![Does Coffee Give You A Different Buzz Than Tea?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ZDDC3RQJ5PFX4VQ7FHTTWYUJ7A.jpg?w=600)
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Does Coffee Give You A Different Buzz Than Tea?
![Will Practicing A Skill In Your Head Make You Better At It?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/FMUVMY3LDS53HJ4H3D2XHPBWXU.jpg?w=507)
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Will Practicing A Skill In Your Head Make You Better At It?
![What’s With All the Movie Mathematicians?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/MVQNLQTXBK5ZKRAFBIVKKZD7Q4.jpg?w=600)
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What’s With All the Movie Mathematicians?
![Does Using The AC Make It Hotter Outside?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/GPSYNYDJTDXW2OPLHBWLOGZMRI.jpg?w=455)
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Does Using The AC Make It Hotter Outside?
![How Much Exercise Do We Get From Talking?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/6LEEQHEVMXNY24NXD5OKFM22B4.jpg?w=388)
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How Much Exercise Do We Get From Talking?
![Can Hypnosis Kill You?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/SCCWCYKBIBRX7VYO2Q4L4AMY2I.jpg?w=565)
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Can Hypnosis Kill You?
![What’s the Deal with Paranormal Ectoplasm?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/VZFLDXPJGRQ7T5WXWK4YEPYSCM.jpg?w=552)
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What’s the Deal with Paranormal Ectoplasm?
![Do Computers Die Of Old Age?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/YFA32BBE46HULOENZWGWN3BVBM.jpg?w=615)
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Do Computers Die Of Old Age?
![Why is Candy Crush So Addictive?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/7YMA7LW5J5PAB2F2IUL5K3ND34.jpg?w=594)
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Why is Candy Crush So Addictive?
![Does Hitting The Snooze Button Help Or Hurt?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/JM626GRO3XWS2VQFMKSUUAWGXM.jpg?w=634)
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Does Hitting The Snooze Button Help Or Hurt?
![Can You Get A Smell Stuck In Your Head?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/6E6KKEWTEOGZ3PPCUTBIULXU4A.jpg?w=482)
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Can You Get A Smell Stuck In Your Head?
![Does Sugar Make Kids Hyper?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/D5WIE45LDAVYRX3KGLCVWHGINU.jpg?w=695)
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Does Sugar Make Kids Hyper?
![Why Does Mold Come In So Many Colors?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/CLOYIIE4YJLPVLUFV4ERKE2F6E.jpg?w=454)
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Why Does Mold Come In So Many Colors?
![Can Two People Repopulate Earth?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/HQYDRN3K2Z4DCXOHWO4UEKDL5E-scaled.jpg?w=672)
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Can Two People Repopulate Earth?
![Do Babies Express Emotions In The Same Way Adults Do?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/D27LZJMTVUJKASVFI7V2ACOHHI.gif?w=378)
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Do Babies Express Emotions In The Same Way Adults Do?
![Do Mice Really Adore Cheese?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ADUT52AYIOEXSRBHJ37EY4HAYU.jpg?w=675)
Animals
Do Mice Really Adore Cheese?
![Ask Us Anything: How Common Is Scientific Fraud?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/HSHHXW5S4OKSNNMXOOPAY3KNNA.jpg?w=600)
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Ask Us Anything: How Common Is Scientific Fraud?
![Do Fish Get Out Of Breath?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/CQJEOZUZYTWXM4K5BD5DRNEQZQ.jpg?w=456)
Animals
Do Fish Get Out Of Breath?
![What’s The Worst Possible Password?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/KUSQGW2AUMELJZ74CKMGLIQABI.jpg?w=509)
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What’s The Worst Possible Password?
![Ask Us Anything: Are Aphrodisiacs For Real? [Video]](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/ZSJE4KVHKSXZP4362TZLUW674M.jpg?w=522)
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Ask Us Anything: Are Aphrodisiacs For Real? [Video]
![How Big Would A Meteorite Have To Be To Wipe Out All Human Life?](https://cdn.statically.io/img/www.popsci.com/wp-content/uploads/2019/03/18/XGKD2ZEXO5ZUVCIYEUXZQUDXWM.jpg?w=528)
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