Masechet Taanit features a disagreement between Rabbi Yehoshua and Rabbi Eliezer about the origins of rainwater…
The Daf Yomi cycle just finished studying Masechet Rosh Hashanah. Mazal tov to all those who have completed this study! In Masechet Rosh Hashanah observations of the Moon play a very significant role. A major topic of study in this tractate is how the ancient Jewish “calendar” worked. In fact, it was not really a…
The blessing Yotzer Or, “Who creates light”, said daily before reading the Shema in the morning, is full of astronomical ideas to enhance kavana…
In 1969 Rabbi Menachem Kasher published a series of Torah essays related to the Apollo 11 Moon Landing: HaAdam Al Hayareach…
Ramban’s comments on the meorot (heavenly luminaries) and rakia (firmament; or sky…) connect to the Earth’s early history…
The very first line of Pesachim focuses attention on one of astronomers’ favorite topics: light! Or does it?
The first century CE Jewish philosopher Philo of Alexandria, in glowing terms, describes the holiday of Shavuot and its underlying reasons based on mathematics – and astronomy!
Chanukah is an opportune time to share this interesting midrash about the Menorah and planets…
The 2019 Nobel Prize in Physics “for the discovery of an exoplanet orbiting a solar-type star” can help understand a midrash on Bereishit…
In 1969 Rabbi Menachem Kasher, one of the gedolim [= great Torah scholars] of the twentieth century, published a series of Torah thought essays related to the most amazing event of his time, or any time ever in human history: the Apollo 11 Moon Landing. In honor of the 50th Anniversary of the Apollo 11 Moon Landing, this week I am…
Rav Kasher answers the question, from a Torah point of view… Is one even allowed to go to the Moon?
Rav Kasher explains a verse in Isaiah and gives a geopolitical drasha on why the Apollo 11 Moon Landing is a great sign for the Jewish people…
AstroRav: Torah & Astronomy 