Signs of Liquid Water Found on Surface of Mars, Study Says

aidos wrote: post #4

I'm so confused. "Definitive signs"? Is this the Nasa announcement or something else? I thought it didn't start for another 15 minutes.

This is most likely the Nasa announcement. Remember folks! Science doesn't happen in a vacuum.

The scientific papers that outline this analysis was already available in astronomy circles - the Nasa event is the press conference letting the bigger community know.

It's not like it's a secret! All the measurements were already made by the Orbitor and is presumably analysed by researchers around the world prior to this unveiling.

Re: Signs of Liquid Water Found on Surface of Mars, Study Says

#7

Post by sjg » Mon, Sep 28, 2015, 3:19 PM UTC

tomkwok wrote: post #3

NASA's 'Mars Mystery Solved' Press Conference starts at 11:30 a.m. EDT. Live TV: http://www.nasa.gov/multimedia/nasatv/

Seems like the the NASA TV Site is not loading for me here. http://www.ustream.tv/NASAHDTV is working however.

Re: Signs of Liquid Water Found on Surface of Mars, Study Says

#8

Post by mspokoiny » Mon, Sep 28, 2015, 3:21 PM UTC

This is amazing!!!

Re: Signs of Liquid Water Found on Surface of Mars, Study Says

#9

Post by carrja99 » Mon, Sep 28, 2015, 3:23 PM UTC

netcraft wrote: post #5

The first I have heard of Don Juan Pond ( https://en.wikipedia.org/wiki/Don_Juan_Pond ) although I wouldn't say it looks like a swimming pool ( http://www.lakescientist.com/wp-content/uploads/2014/04/don-... ). Edit: Here is an article from brown that also draws parallels between Don Juan and Mars: https://news.brown.edu/articles/2013/02/antarctica

It once looked like a swimming pool. From the wikipedia entry you linked:

"According to the USGS topographical map published in 1977, the area was approximately 0.25 km2 (62 acres). However, in recent years the pond has shrunk considerably. The maximum depth in 1993–1994 was described as "a foot deep" (30 cm). In January 1997, it was approximately 10 centimetres (3.9 in) deep; in December 1998 the pond was almost dry everywhere except for an area of a few tens of square meters."

Re: Signs of Liquid Water Found on Surface of Mars, Study Says

#10

Post by jonlucc » Mon, Sep 28, 2015, 3:24 PM UTC

barkingcat wrote: post #6

aidos wrote: post #4

I'm so confused. "Definitive signs"? Is this the Nasa announcement or something else? I thought it didn't start for another 15 minutes.

This is most likely the Nasa announcement. Remember folks! Science doesn't happen in a vacuum. The scientific papers that outline this analysis was already available in astronomy circles - the Nasa event is the press conference letting the bigger community know. It's not like it's a secret! All the measurements were already made by the Orbitor and is presumably analysed by researchers around the world prior to this u…

And I assume they publish in peer-reviewed journals, so there've been a few others with the actual manuscript.