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.
Examples Of How You Can Contribute To Both A 401k And An IRA. Letâs look at an example of how you can combine the power of the 401ks and IRAs to speed up your retirement savings: Example #1: Consider a 30-year-old earning $55,000 per year (25% tax bracket).ust as with your traditional 401k, you contribute pretax dollars to a traditional IRA (as I discuss further, you can only contribute pretax dollars up to certain income levels) and then benefit from tax-deferred growth and distributions.