NASA's New Horizons deep-space probe has, for the first time, returned images to Earth that showed stellar parallax, or how the positions of stars shift when seen from two different places. This could ...

No, but it was considered. The reason parallax measurements weren’t taken with Voyager or any other interplanetary spacecraft is simply that astronomers can do better from the ground or with dedicated ...

Over the 25 years I’ve written this column, I’ve often marveled at the mind-boggling distances to many celestial objects. Astronomers don’t often use miles to express stellar and galactic distances ...

THE Observatory of Yale College has acquired a deservedly high reputation for the zeal with which the staff has prosecuted the inquiry into stellar parallax and the standard of accuracy consistently ...

Over the many years I’ve been writing this column, I’ve rattled off the distances to many celestial objects. I don’t often use miles to express stellar and galactic distances because the numbers would ...

SOME years ago Dr. Chase, of the Yale University Observatory, communicated to the Astronomical and Astrophysical Society of America the results of a survey which he had carried out, in collaboration ...