Google Gets Set for a Product Event

Apple hosted an event to introduce its latest iPhones,

 iPad and Apple TV. On Tuesday,

 Google plans to hold its own such event

Yahoo decided to go ahead with spinning off its 

Alibaba stake into a separate entity, despite

 uncertainty after federal tax authorities declined 

to rule in advance on whether the transaction

 would mean huge capital gains taxes for Yahoo 

or its shareholders. Yahoo shareholders

 had been looking forward to the spinoff

so by keeping it on track, Marissa Mayer, the

 company’s chief executive,

 gets to keep those shareholders happy

Mars Shows Signs of Having Flowing Water

Scientists have for the first time confirmed

  liquid water flowing on the surface of present-day

  

Mars, a finding that will add to speculation

 that life, if it ever arose there, could persist now.

Facebook and Google

Facebook and Google, two digital advertising

 powerhouses, took the stage to introduce services 

meant to lure 

an even bigger portion of digital marketing dollars

Facebook and Google are behemoths in

 online advertising. In the United States, Facebook 

is projected to have $7.7 billion in total digital

 ad revenue in 2015, and Google is projected

 to have $23.3 billion, according 

to the research company eMarketer

De l’eau salée s’écoulerait sur la planète Mars

des solutions salées très concentrées

 contenant de l’eau liquide – à la surface

 de Mars. En mai, il avait cosigné 

un article dans Nature Geoscience qui 

décrivait la possible détection de telles

 saumures dans l’environnement immédiat

 du rover Curiosity de la NASA. Il 

revient sur la dernière annonce de 

l’agence 

américaine, lundi 28 septembre, décrivant 

des coulées saisonnières de telles 

saumures sur les 

pentes ensoleillées de la Planète roug

si la vie 

s’est développée sur Mars, alors elle

 a sans doute eu plusieurs centaines de

 millions d’années pour s’adapter à des

 conditions de plus en plus difficiles.