British Atomic Clock 'most Accurate In World'

Mammograms are now recommended starting at age 40. Should you get one? CNNMammogram screening guidelines for young women zigzag again - STAT STATSeniors and breast cancer: Why aren’t older women told to get mammograms? Fox NewsMetro Detroit women sound off on new age recommendations for mammograms WXYZ 7 Action News DetroitIn Reversal, Expert Panel Recommends Breast Cancer Screening at 40 The New York Times

COVID-19 variants called 'FLiRT' continue to spread across the US, CDC says KSAT San AntonioNew COVID variant 'FLiRT': What to know about spread, symptoms USA TODAYDoctors Warn About 2 New COVID Variants—What to Know About 'FLiRT' Strains Prevention MagazineFLiRT, New Covid-19 Variant In US: What We Know So Far NDTV

Starliner launch delayed to mid-May SpaceNewsOfficials describe telltale ‘buzz’ that led to last-minute scrub of Boeing Starliner’s crewed launch CNNBoeing Starliner capsule carrying Sunita Williams to now take off on May 17 The Times of India'Buzzing' rocket valve pushes 1st astronaut launch of Boeing's Starliner capsule to May 10 Space.comBoeing Starliner crewed mission postponed shortly before launch Phys.org

Americans breathe in carcinogenic chemicals found in cars: study Fox NewsConsumer Reports petitions for changes to cancer-causing chemicals in car seats WRAL NewsStudy raises concern over exposure to flame retardant chemicals used in some car seats CBS NewsDrivers Are Inhaling Cancer-Causing Chemicals in Their Cars, New Study Finds PEOPLEPeople Are Breathing In Cancer-Causing Chemicals In Their Cars, Study Finds NDTV

Geologists reveal mysterious and diverse volcanism in lunar Apollo Basin, Chang'e-6 landing site Phys.orgThe lunar far side is wildly different from what we see. Scientists want to know why CNNChina has launched a secret robot to the far side of the moon, new Chang'e 6 photos reveal Livescience.comChina launches historic mission to retrieve samples from far side of the moon ReutersChina's Chang'e-6 is carrying a surprise rover to the moon SpaceNews

Computer models show heat waves in north Pacific may be due to China reducing aerosols Phys.orgAtmospheric 'teleconnections' sustain warm blobs in the northeast Pacific Ocean Phys.org