Do the oceans get saltier over time?

Does a superconductor truly have 0 Ω resistance, or is it only arbitrarily close?

The hadron collider is 27kms in size. How much does upping the scale of size help with research?

Why are solar sails reflective, not black?

Is it in any way possible to reverse a black hole?

What do all the numbers and letters mean in celestial bodies?

Can water be frozen in an airtight container?

Why do some insects have hemoglobin while others have hemocyanin?

Is it possible that we could one day be surprised by Martian fossils?

3 interesting chemistry questions anwsered

How dangerous Large Hadron Collider (LHC) really is?

4 intriguing psychology questions

6 Great gift ideas for learning science

Is there a rule of thumb about the minimum population required for a viable recovery of a species?

In terms of a percentage, how much oil is left in the ground compared to how much there was when we first started using it as a fuel?

Does the universe have an event horizon?

Are the barnacles that grow on whales harmful?

What is the fastest beats per minute we can hear before it sounds like one continuous note?

Carbon in all forests is 638 GtC. Annual carbon emissions by humans is 9.8 GtC (1.5% of 638). Would increasing forests by 1.5% effectively make us carbon-neutral?

What would happen if a celestial body the size/mass of the moon hit the sun at 0.999c?

If we detonated large enough of a nuclear bomb on Jupiter, could we initialize a nuclear chain reaction and create a second sun?

How much more dangerous would lightning strikes have been 300 million years ago when atmospheric oxygen levels peaked at 35%?

Is there a limit to expansion of the International Space Station?

Has it been scientifically proven that Nuclear Fusion is actually a possibility and not a 'golden egg goose chase'?