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.
Because there are no income limits on Roth 401(k) contributions, these accounts provide a way for high earners to invest in a Roth without converting a traditional IRA. In 2014, you can contribute up to $17,500 to a Roth 401(k), a traditional 401(k) or a combination of the two.Workers 50 or older can contribute up to $23,000 annually. If you get matching funds from your employer, they go into a traditional pretax 401(k) account. Consider the benefits.hinkstock. If your employer now offers a Roth option in your 401(k), it's a great idea to invest in it, or at least consider investing a portion of your 401(k) contribution in the Roth. Contributions to a Roth 401(k) won't reduce your tax bill now.