9.Pluto- 39.4 AU why do astronomers not measure the distances to stars in kilometers? distance to stars are so great that the number are too large to work with easily.
Some seeds can last for three to four years, such as: 1  asparagus. 2  beans. 3  broccoli. 4  carrots. 5  celery. 6  leeks. 7  peas. 8  spinach.
Sunflower Seeds Expiration Date. Of course, sunflower seeds last for a shorter period of time if they are not stored properly. But remember that sunflower seeds, like a lot of other seeds, usually have a best by date and not an expiration date. Because of this, you can safely use them beyond their best by date.