The magnitude of the shift in the starlight's wavelength — on the order of quadrillionths of a meter — together with the period of the wobble can be used to determine an exoplanet's mass and orbital distance from its star. (keckobservatory.org)
Now, we measure crisscrossing pulses of laser light with spectrometers to follow the molecular dynamics of biological objects in real time, as measured in quadrillionths of a second. (quantamagazine.org)
X-ray free - electron lasers, first realized a decade ago, produce the brightest X-rays on the planet, and scientists tap into these unique X-rays to explore matter at the atomic scale and observe processes that occur in just quadrillionths of a second. (newscenter.lbl.gov)