Researchers believed the hydrogen seen in the
dust was coming from
water, a hypothesis that was later corroborated by Curiosity's SAM instrument, which indicated that all of the soil
encountered on Mars contains between 1.5
and 3 percent
water.
Light waves can be reflected / scattered, absorbed, refracted, or transmitted to pass through matter unchanged
and different materials will have different effects in these
encounters; high energy light waves get scattered in our atmosphere from
encounters with
dust,
water vapour, molecules, etc. as the white light hits the rough surface composed of these, so we have a blue sky for example, while the longer IR gets absorbed by
water and earth, on a smooth surface such as glass or still
water these high energy lights get reflected, angle of incidence equal to,
and some pass through to get reflected or scattered at the next surface, think rainbow.
You can also get the new TUMI - designed Frontier Gear S3 in the US, with a strap that comes in a «signature Earl Grey colorway
and is constructed from an Italian canvas, which features a stainless - steel buckle
and stitched edge detailing, is durable enough to resist
water,
dust, or rough conditions you may
encounter on your adventures.»