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.
Hereâs where to start: 1  If your employer matches 401k funds, contribute enough to get the full match. 2  Next, if you can contribute to a Roth IRA, work on contributing the full $5,000 a year to that account before you contribute elsewhere.y original plan was to invest in my 401k up to the match of 6% (in this case $3900), and then put an additional $5000 into a Roth IRA. However, I just found out about the option of a Roth 401k, which I had never knew existed.