Short-period comets need roughly 200 years or less to complete one orbit, long-period comets take more than 200 years, and single-apparition comets are not bound to the sun, on orbits that take them out of the solar system, according to NASA.
Yes, you can invest in both an IRA and a 401k (or a Roth 401k and a Roth IRA) at the same time, or any combination of those accounts. And in some cases, based on the fees in your 401k, an IRA might actually be a better place to invest your money.
For those wondering if you can invest in 401ks and IRAs at the same time, the short answer is simple: Yes, you can. Whether you should, though, is another question altogether. Plus, it may make sense for you to pick one or the other, depending on your situation and financial requirements.ut, you can have an IRA and a 401k, and the two do not really have much to do with one another (with one exception that weâll talk about). The main thing to know about a dual investment strategy is that the numbers related to each plan are not related to one another.