British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

Home Forums Moon
Terms of use

Nasa announcement

9 posts / 0 new
Last post
Daryl's picture
Offline
Last seen: 1 hour 17 min ago
Joined: 02/07/2015 - 21:35
Nasa announcement

Nasa will make an announcement about results obtained from their flying observatory regarding the Moon on Monday.

https://www.nasa.gov/press-release/nasa-to-announce-new-science-results-...

pgudgeon's picture
Offline
Last seen: 3 hours 26 sec ago
Joined: 13/11/2015 - 19:04
What is 12 am or 12 pm?

Having just checked that website it refers to "teleconference at 12 p.m. EDT Monday, Oct. 26"  ?

My understanding is that there is "12 o’clock midday" and "12 o’clock midnight". Surely 12 p.m. would come 1 minute after 11:59 p.m. Similarly midday, coming 1 minute after 11:59 a.m. would either be 12 a.m. or even 0 p.m.

I believe that the NASA website is referring to their midday. 

Xilman's picture
Offline
Last seen: 20 min 25 sec ago
Joined: 24/03/2018 - 15:17
Neither.

00:00 is the first midnight of each day; 12:00 is noon; 24:00 is the second midnight of each day.

00:00, occurring before the sun reaches its highest point the sky (except at the geographic poles), is quite clearly ante meridiem and 24:00 is equally clearly post meridiem.

Yes, I am a pedant.  Guilty as charged.

callump's picture
Offline
Last seen: 35 min 43 sec ago
Joined: 03/01/2014 - 12:25
It's life Jim, but not as we know it

Just speculating :-)

Daryl's picture
Offline
Last seen: 1 hour 17 min ago
Joined: 02/07/2015 - 21:35
Water everywhere

Just popped up on the BBC 

Water on the Moon could sustain a lunar base https://www.bbc.co.uk/news/science-environment-54666328

Bit optimistic headline

Daryl's picture
Offline
Last seen: 1 hour 17 min ago
Joined: 02/07/2015 - 21:35
Clavius

Apparently using Sofia they claim to have found 12 flow per cubic meter in Claviu, seems rather a lot of molecular water

nickjames's picture
Offline
Last seen: 2 hours 6 min ago
Joined: 12/10/2013 - 18:16
NASA and units

Don't get me started on NASA's "discovery of xxx" press conferences and their wonderful mixture of units. From the BBC article: ""The amount of water is roughly equivalent to a 12-ounce bottle of water in a cubic metre of lunar soil." I suppose it is not as bad as saying a bath full of water in something the size of a house. Indeed, over half a pint of water in a cubic metre of soil does sound an awful lot though. My garden possibly had less than that at some point in the last summer! I suppose I should really look at the Nature papers rather than rely on second hand reports on the BBC but life is too short...

Ray Emery's picture
Offline
Last seen: 4 days 17 hours ago
Joined: 05/03/2014 - 08:54
BBC numpties

Today's teatime BBC "PM" programme began with an announcement that NASA had discovered even more water than on "the dark side of the Moon". It got switched off before I threw the radio out of the back door...

Xilman's picture
Offline
Last seen: 20 min 25 sec ago
Joined: 24/03/2018 - 15:17
I'm not surprised

You reaction is understandable. Clavius is clearly not on the dark side of the moon because I have seen it for myself. Mare Moscoviense is on the dark side of the moon (*)

Anyway, there is no dark side of the moon really. As a matter of fact, it is all dark (+).

* In the same sense as Africa used to be the dark continent.

+ According to Pink Floyd. As the albedo is roughly the same as that of tarmac they make a good case IMO.