March 20 , 2023
                                                                          956 days 
                                      627
                                    
                                   
								   
                                
                                
                                    
	- Scientists used Stratospheric Observatory for Infrared Astronomy (SOFIA) to formulate a detailed map displaying the distribution of water on the moon.
- The telescope also detected heavy atomic oxygen in the upper layers of Earth's atmosphere, the mesosphere, and the lower thermosphere. 
- This is the first-time heavy oxygen has been found outside a laboratory.
- The oxygen 18 is stable isotope of oxygen. 
- It has eight protons and 10 neutrons.
- Oxygenn-18 is used to determine the temperature at which ice forms at temperatures in Arctic and Antarctic regions.

                                 
                            
                                
                                Post Views: 
                                627