Keck spectra of two binary quasars. Spectral dissimilarity and the absence of a lensing galaxy in optical and near‐IR follow‐up imaging provide strong evidence that these are both binary quasars rather than gravitational lenses. Top: Keck LRIS moderate‐resolution spectra of both members of the binary quasar SDSS J0048−1051 (﹩z=1.56﹩, ﹩\Delta \theta =3\farcs 6﹩, ﹩R=22.1\ h^{-1}\ \mathrm{kpc}\,﹩). The resolution is 0.63 Å pixel⁻¹ for ﹩\lambda < 5600﹩ Å and 1.86 Å pixel⁻¹ for ﹩\lambda > 5600﹩ Å. The absorption feature at 7600 Å is telluric. Bottom: Keck LRIS low‐resolution (2.55 Å pixel⁻¹) spectra of both members of SDSS J0248+0009 (﹩z=1.64﹩, ﹩\Delta \theta =6\farcs 8﹩, ﹩R=41.9\ h^{-1}\ \mathrm{kpc}\,﹩).