Water Vapor Discovered br for First Time , on Jupiter Moon Ganymede.br The findings of the new study were recently published in the journal of Nature Astronomy.br The C.D.C. labeled the Delta variant as a "variant ofbr concern," which means that it may be more transmissible, .br it may cause more severe illness and that vaccines br may be less effective in preventing illness.br Water vapor in the atmosphere matches the data very well, Lorenz Roth, Lead Study Author, via Space.com.br Within this stronger oxygen signal, it's hard to find other signals, Lorenz Roth, Lead Study Author, via Space.com.br These findings suggest that water vapor actually exists in the atmospheres of icy bodies in the outer solar system, Lorenz Roth, Lead Study Author, via Space.com.br Now we might see it more places, Lorenz Roth, Lead Study Author, via Space.com.br Experts say that current vaccines used in the br U.S. are effective against this variant, .br but that those who have not been br vaccinated are especially susceptible.br This is the most dangerous phase of the pandemic coming up for people who are unvaccinated, Dr. Gregory Poland, Mayo Clinic's Vaccine br Research Group, via NBC News.