One of the more popular items on retirement surveys is the "magic number": How much savings you need, on top of any Social Security benefits, to live out a comfortable retirement. An Aug. 1 analysis ...

Note: This story is outdated. See the newest magic number for the Cleveland Guardians in our latest story here. With the MLB postseason quickly approaching, the Cleveland Guardians' have a new magic ...

The Philadelphia Eagles are closing in on another NFC East title — and their playoff seed is coming into focus.

As MLB playoff races begin to heat up, magic numbers come into play. / Allan Henry-Imagn Images MLB's playoff races are heating up as the regular season nears its final week. Every game matters and, ...

Some atoms are stable, while others seem to fall apart. Lead-208 will probably last forever, while the synthetic isotope technetium-99 exists for just hours. The difference lies in the structure of ...