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.
Can I make a contribution to both a Traditional IRA and a Roth IRA? If you meet the eligibility requirements for both Traditional and Roth IRAs and you want to open both, you may. However, your total contribution between both accounts can only be $5,500, unless you are age 50 or older, and you can contribute $6,500.an I make a contribution to both a Traditional IRA and a Roth IRA? If you meet the eligibility requirements for both Traditional and Roth IRAs and you want to open both, you may. However, your total contribution between both accounts can only be $5,500, unless you are age 50 or older, and you can contribute $6,500.