Tu Bishvat” literally means the 15th day of the Hebrew month of Shevat but is often called Jewish Earth Day or the New Year for the Trees.

Although Rabbi Jacobs’ article alludes to numerous other examples of scientific knowledge, let me conclude by examining a broader area which might be termed practical or applied astronomy.

At Beth Midrash Harav B’Nai Jacob, an Orthodox synagogue in Northeast Philadelphia, the community that members have fostered ...