They threaten our survival, but they could be the source of life on Earth.☄️#Comets

Watch full episodes of #HowtheUniverseWorks now on SCI Go. https://t.co/nqwVBfdr32

You can find me atop the highest mountain or at the bottom of the deepest sea. Possibly in a rainforest tree, or even in the arctic, I could be. Send me into space, I'll survive, you'll see. #WaterBear 

#MicroscopicMonday 🧫by Dr. Hunter Hines (@ciliateco) https://t.co/zp3ROMtap1

This lost city was the home to Nefertiti and Tutankhamun. So, why was it destroyed? 🏜

Watch full episodes of #Unearthed NOW on SCI Go.

Hadrian's Wall is the biggest structure the Romans ever built. 🧱

Watch a new episode of #Unearthed TONIGHT at 10p ET only on @ScienceChannel and on SCI go. https://t.co/pBcQH00qgK

Most painters need only two things to make art: their paintbrushes and paint. 

Watch full episodes of #HowitsMade on SCI Go. https://t.co/ht348mec47 https://t.co/zEI56Z3p6E

Welcome to #Wyoming, home to the Grand Prismatic Spring. The microbial mats around the edges of the mineral-rich water induce vivid colors. The amount of color in the microbial mats depends on the ratio of chlorophyll to carotenoids and on the temperature gradient in the runoff. https://t.co/mjTyiocxBd

What's going on in the South China Sea? Are we on the verge of World War III? 

Watch full episodes of #WhatOnEarth only on @ScienceChannel and on SCI Go. --> https://t.co/MVivNOnOy8 https://t.co/ga3dqeRhqI

The silhouette of a snake emerged in one of the most inhospitable places on Earth... What is it and why it is there? 

Watch full episodes of #WhatonEarth only on @ScienceChannel and on SCI Go. https://t.co/tfP2F4PJvP https://t.co/DBuFfRoCkX

"What goes up must come down." — Sir Isaac Newton 

#DiscoverGlobe  by Andrés Aguilera (@AndriuFPV) https://t.co/Pkxp0uEu4q

It may be authentic, but it probably wasn't acquired legally. Looters have plagued ancient Egyptian ruins for centuries.🏜

Watch full episodes of #EgyptsUnexplained on @ScienceChannel and on SCI Go. https://t.co/WYXdxchc3H https://t.co/KuQJr6lp97

Winter storms on South Africa's cape are powerful and deadly.

Watch full episodes of #MysteriesoftheAbandoned NOW on SCI Go. --> https://t.co/XT3XBbhteU https://t.co/GsEf07OKnk

We think this gooey mushroom is a Cortinarius vanduzerensis. You're the experts, what do you think?

#FungusFriday  by Anna Towers (@1friendlyfungus) https://t.co/2t8jgUps9b

Missed an episode of #HowTheUniverseWorks? Catch-up online now, then watch an all new episode Thursday at 10p ET only on @ScienceChannel and on SCI Go.☄️

Watch now -->  https://t.co/aAXd2K3fLF

A dead zone in Earth's magnetic field could have a catastrophic effect on the planet.  

Watch full episodes of #WhatonEarth NOW on SCI Go. -->  https://t.co/Frh0lrJDfj

Solving a 5,000-year-old murder is no easy task.🏔

Watch full episodes of #Unearthed on @ScienceChannel and on SCI Go. https://t.co/6saYE3GqI9 https://t.co/ilYKxqpHDq

What risks would you take to find the fountain of youth?  

The Drake equation suggests that there are 10,000 intelligent civilizations in our galaxy, but scientific probability suggests there may be far more... What do you think?

Watch all-new episodes of #HowtheUniverseWorks Thursdays at 10p ET on @ScienceChannel and on SCI Go. https://t.co/JWnHe0otJn

If you're wondering why no one ever visits Earth, it may be because we live in the suburbs of the Milky Way. 

Watch new episodes of #HowtheUniverseWorks Thursdays at 10p ET on @ScienceChannel and on SCI Go. https://t.co/DCi62Yx2LG

The silhouette of a snake emerged in one of the most inhospitable places on Earth... What is it and why it is there? 

Watch a new episode of #WhatonEarth TONIGHT at 9p ET only on Science Channel and on SCI Go. https://t.co/XjcVHKnCCI

.@ToryBelleci and @StreetBikeTommy are getting up-close-and-personal with the bomb squad. 🧨

Watch full episodes of The #ExplosionShow NOW on SCI Go. --> https://t.co/SPzbFReV6A