The specter of authenticity: Social science after the deconstruction of Romanticism.

In a long-forgotten essay, Alvin Gouldner defended the distinctive contributions of Romantic social science. Today, half a century later, very few would risk making a similar plea. Owing to its deconstruction, the discourse of Romanticism has increasingly fallen out of favor in the social sciences, meaning social scientists have progressively come to see Romanticism as less a for critique than a bourgeois warranting critical scrutiny.

Orbital period change of Dimorphos due to the DART kinetic impact.

The Double Asteroid Redirection Test (DART) spacecraft successfully performed the first test of a kinetic impactor for asteroid deflection by impacting Dimorphos, the secondary of near-Earth binary asteroid (65803) Didymos, and changing the orbital period of Dimorphos. A change in orbital period of approximately 7 min was expected if the incident momentum from the DART spacecraft was directly transferred to the asteroid target in a perfectly inelastic collision, but studies of the probable impact conditions and asteroid properties indicated that a considerable momentum enhancement (β) was possible. In the years before impact, we used lightcurve observations to accurately determine the pre-impact orbit parameters of Dimorphos with respect to Didymos.