Stable packets of light waves — called optical solitons — are emitted in ultrashort-pulse lasers as a chain of light flashes. These solitons often combine into pairs with very short temporal separati… [+2869 chars]
The "Live Space Station Tracking Map" on NASA's website is your first option. It has a solitary flight path map showing the exact location of the ISS as it travels across the planet in real-time. It … [+1390 chars]
When Neil Armstrong set foot on the Moon on July 21, 1969, I wasnt even born. Ive heard stories about how the world held its breath a long, excruciating inhale while they watched on TV as the Eagle l… [+6432 chars]
It has been common knowledge that climatic shifts, in particular the transition from the warm and wet Pliocene (5.3-2.6 mya) to the cold and dry Pleistocene (2.6 mya 10 kya), played a key role in the… [+5859 chars]
